FPUS55 KRIW 180803 ZFPRIW Zone Forecast Product for Western and Central Wyoming National Weather Service Riverton WY 101 AM MST Wed Feb 18 2026 WYZ020-181100- Natrona County Lower Elevations- Including the city of Casper 101 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST THURSDAY... .REST OF TONIGHT...Partly cloudy. Lows in the lower 20s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY...Partly cloudy with a chance of snow in the morning, then mostly cloudy with snow likely in the afternoon. Snow accumulation up to 1 inch. Breezy with highs in the lower 40s. Southwest winds 15 to 20 mph with gusts up to 35 mph. Chance of snow 70 percent. .WEDNESDAY NIGHT...Snow. Storm total snow accumulation of 3 to 5 inches. Breezy, cold with lows 4 to 8 above. North winds 15 to 20 mph. Gusts up to 35 mph in the evening. Chance of snow 90 percent. .THURSDAY...Mostly cloudy. A chance of snow in the morning. New little or no snow accumulation. Much colder with highs 15 to 21. Northwest winds around 10 mph in the afternoon. Chance of snow 50 percent. .THURSDAY NIGHT...Partly cloudy. Cold with lows 4 below to 2 above zero. .FRIDAY...Mostly cloudy. A slight chance of snow showers in the morning, then a chance of snow showers in the afternoon. Highs in the mid 20s. Chance of snow 30 percent. .FRIDAY NIGHT...Partly cloudy with a slight chance of snow showers in the evening, then mostly clear after midnight. Cold with lows around 5 above. Chance of snow 20 percent. .SATURDAY...Sunny. Highs around 30. .SATURDAY NIGHT...Clear, cold with lows 5 to 10 above. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the mid 30s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 15 to 20. .MONDAY...Mostly sunny and breezy. Highs in the mid 40s. .MONDAY NIGHT...Partly cloudy and breezy. Lows around 30. .TUESDAY...Partly cloudy and breezy. Highs around 50. $$ WYZ017-181100- Wind River Basin- Including the cities of Riverton and Shoshoni 101 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST THURSDAY... .REST OF TONIGHT...Partly cloudy. Lows in the lower 20s. South winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY...Partly cloudy with a chance of snow in the morning, then mostly cloudy with snow likely in the afternoon. Snow accumulation up to 1 inch. Breezy with highs in the mid 40s. South winds 15 to 20 mph, becoming southwest in the afternoon. Gusts up to 35 mph. Chance of snow 70 percent. .WEDNESDAY NIGHT...Snow. Storm total snow accumulation of 2 to 4 inches. Breezy, cold with lows around 10 above. North winds 15 to 20 mph with gusts up to 35 mph, becoming northeast around 10 mph with gusts up to 20 mph after midnight. Chance of snow 90 percent. .THURSDAY...Mostly cloudy with a chance of snow in the morning, then partly cloudy in the afternoon. Much cooler with highs around 20. Northeast winds around 10 mph in the afternoon. Chance of snow 30 percent. .THURSDAY NIGHT...Partly cloudy. Cold with lows around 2 above. .FRIDAY...Mostly cloudy in the morning, then becoming partly cloudy. Highs in the mid 20s. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows zero to 5 above zero. .SATURDAY...Sunny. Highs around 30. .SATURDAY NIGHT...Clear, cold with lows 5 to 10 above. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the mid 30s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 10 to 20. .MONDAY...Mostly sunny. Highs in the mid 40s. .MONDAY NIGHT...Partly cloudy. Lows in the mid 20s. .TUESDAY...Partly cloudy with a slight chance of snow showers. A slight chance of rain showers in the afternoon. Breezy with highs in the upper 40s. Chance of precipitation 20 percent. $$ WYZ018-181100- Lander Foothills- Including the city of Lander 101 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST THURSDAY... .REST OF TONIGHT...Partly cloudy with a 30 percent chance of snow. Lows around 20. Southwest winds around 10 mph. .WEDNESDAY...Partly cloudy with a chance of snow in the morning, then mostly cloudy with snow in the afternoon. Snow accumulation up to 1 inch. Highs in the mid 40s. South winds 10 to 15 mph, becoming southwest in the afternoon. Gusts up to 30 mph. Chance of snow 80 percent. .WEDNESDAY NIGHT...Cloudy. Snow likely, mainly in the evening. Storm total snow accumulation of 2 to 4 inches possible. Cold with lows around 9 above. North winds 10 to 15 mph. Chance of snow 70 percent. .THURSDAY...Mostly cloudy with a chance of snow in the morning, then partly cloudy in the afternoon. Cooler with highs in the lower 20s. Northeast winds around 10 mph in the afternoon. Chance of snow 30 percent. .THURSDAY NIGHT...Partly cloudy. Cold with lows around 3 above. .FRIDAY...Mostly cloudy in the morning, then becoming partly cloudy. A 30 percent chance of snow showers. Highs in the upper 20s. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows zero to 5 above zero. .SATURDAY...Sunny. Highs in the lower 30s. .SATURDAY NIGHT...Mostly clear. Cold with lows 5 to 10 above. .SUNDAY...Partly cloudy. Highs in the upper 30s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 15 to 21. .MONDAY...Mostly sunny. Highs in the upper 40s. .MONDAY NIGHT...Partly cloudy. Lows in the upper 20s. .TUESDAY...Partly cloudy with a chance of snow showers with a slight chance of rain showers. Highs in the upper 40s. Chance of precipitation 30 percent. $$ WYZ028-181100- Rock Springs and Green River- Including the cities of Rock Springs and Green River 101 AM MST Wed Feb 18 2026 .REST OF TONIGHT...Mostly cloudy with a 40 percent chance of snow. Cold. Near steady temperature in the lower 20s. South winds around 10 mph with gusts up to 20 mph. .WEDNESDAY...Mostly cloudy with snow likely. Storm total snow accumulation around an inch. Windy with highs around 40. Temperature falling to around 30 in the afternoon. South winds 15 to 20 mph with gusts up to 35 mph, becoming west 20 to 30 mph with gusts up to 45 mph in the afternoon. Chance of snow 60 percent. .WEDNESDAY NIGHT...Partly cloudy. A slight chance of snow in the evening. Breezy, cold with lows around 11. West winds 15 to 25 mph. Gusts up to 45 mph, decreasing to 35 mph after midnight. Chance of snow 20 percent. .THURSDAY...Partly cloudy. Highs in the mid 20s. West winds 10 to 15 mph with gusts up to 25 mph. .THURSDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Cold with lows around 8 above. Southwest winds around 10 mph in the evening. .FRIDAY...Mostly cloudy with a 30 percent chance of snow showers. Highs around 30. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 5 to 10 above. .SATURDAY...Mostly sunny. Highs in the lower 30s. .SATURDAY NIGHT...Mostly clear. Cold with lows around 10 above. .SUNDAY...Partly cloudy. Highs around 40. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 15 to 20. .MONDAY...Mostly sunny. Highs in the mid 40s. .MONDAY NIGHT...Partly cloudy. Lows in the mid 20s. .TUESDAY...Mostly cloudy. A slight chance of snow showers in the morning, then a chance of snow showers in the afternoon. Highs in the mid 40s. Chance of snow 30 percent. $$ WYZ013-181100- Jackson Hole- Including the city of Jackson 101 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... .REST OF TONIGHT...Snow. Snow accumulation up to 2 inches. Cold with lows 11 to 17. South winds around 10 mph. Chance of snow 80 percent. .WEDNESDAY...Snow. A slight chance of thunderstorms in the afternoon. New snow accumulation of 1 to 5 inches. Highs around 30. West winds 10 to 15 mph with gusts up to 30 mph in the afternoon. Chance of snow 90 percent. .WEDNESDAY NIGHT...Snow. Storm total snow accumulation of 3 to 5 inches. Cold with lows around 10 above. Southwest winds 10 to 15 mph. Gusts up to 30 mph in the evening. Chance of snow 80 percent. .THURSDAY...Snow likely in the morning, then snow showers in the afternoon. New little or no snow accumulation. Highs around 20. Southwest winds around 10 mph. Chance of snow 80 percent. .THURSDAY NIGHT...Partly cloudy. Cold with lows 6 below to zero. South winds around 10 mph in the evening. .FRIDAY...Partly cloudy. A slight chance of snow showers in the morning, then a chance of snow showers in the afternoon. Highs in the mid 20s. Chance of snow 40 percent. .FRIDAY NIGHT...Partly cloudy. A chance of snow showers in the evening. Cold with lows zero to 5 above zero. Chance of snow 30 percent. .SATURDAY...Partly cloudy in the morning, then clearing. A 20 percent chance of snow showers. Highs around 30. .SATURDAY NIGHT...Mostly clear. Cold with lows around 5 above. .SUNDAY...Partly cloudy. Highs in the upper 30s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. A slight chance of. Cold with lows 10 to 15. .MONDAY...Mostly sunny. A slight chance of snow showers in the morning, then a chance of snow showers in the afternoon. Highs around 40. Chance of snow 30 percent. .MONDAY NIGHT...Partly cloudy with a chance of snow showers in the evening, then snow showers likely after midnight. Light snow accumulation possible. Lows in the lower 20s. Chance of snow 60 percent. .TUESDAY...Snow showers. New light snow accumulation. Highs in the mid 30s. Chance of snow 80 percent. $$ WYZ003-181100- Cody Foothills- Including the cities of Clark, Cody, and Meeteetse 101 AM MST Wed Feb 18 2026 .REST OF TONIGHT...Partly cloudy. Cold with lows around 20. Southwest winds around 10 mph. .WEDNESDAY...Mostly cloudy. A chance of snow in the afternoon. Windy with highs in the lower 30s. Temperature falling into the mid 20s in the afternoon. Northwest winds 15 to 20 mph with gusts up to 40 mph, becoming north 20 to 30 mph with gusts up to 50 mph in the afternoon. Chance of snow 30 percent. .WEDNESDAY NIGHT...Cloudy. Snow likely, mainly in the evening. Storm total snow accumulation around an inch possible. Windy, cold with lows 5 to 9 above. North winds 20 to 30 mph with gusts up to 50 mph, diminishing to 15 to 20 mph with gusts up to 40 mph after midnight. Chance of snow 60 percent. .THURSDAY...Mostly cloudy. A chance of snow in the morning. Cold with highs 16 to 22. Northeast winds around 10 mph, becoming east in the afternoon. Chance of snow 30 percent. .THURSDAY NIGHT...Partly cloudy. Cold with lows 4 to 8 above. .FRIDAY...Partly cloudy. Highs in the upper 20s. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 10 to 15. .SATURDAY...Mostly sunny. Highs in the mid 30s. .SATURDAY NIGHT...Mostly clear. Cold with lows around 15. .SUNDAY...Partly cloudy in the morning, then becoming mostly cloudy. Highs in the upper 30s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 20s. .MONDAY...Mostly sunny. Highs in the lower 50s. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 30. .TUESDAY...Mostly cloudy in the morning, then becoming partly cloudy. A chance of snow showers. A slight chance of rain showers in the afternoon. Breezy with highs in the mid 40s. Chance of precipitation 30 percent. $$ WYZ004-181100- North Bighorn Basin- Including the cities of Basin, Greybull, Lovell, Powell, and Shell 101 AM MST Wed Feb 18 2026 .REST OF TONIGHT...Partly cloudy. Much cooler with lows around 20. Southeast winds around 10 mph. .WEDNESDAY...Partly cloudy. A chance of snow in the afternoon. Windy with highs in the upper 30s. Northeast winds 15 to 20 mph with gusts up to 35 mph, becoming northwest 20 to 30 mph with gusts up to 50 mph in the afternoon. Chance of snow 30 percent. .WEDNESDAY NIGHT...Snow. Storm total snow accumulation of 1 to 3 inches. Windy, cold with lows around 8 above. Northwest winds 20 to 30 mph with gusts up to 50 mph, diminishing to 15 to 20 mph with gusts up to 40 mph after midnight. Chance of snow 80 percent. .THURSDAY...Mostly cloudy. A chance of snow in the morning. Cooler with highs around 20. Northwest winds around 10 mph with gusts up to 20 mph in the morning. Chance of snow 30 percent. .THURSDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 1 to 7 above. .FRIDAY...Partly cloudy. Highs in the lower 30s. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 5 to 10 above. .SATURDAY...Mostly sunny. Highs in the mid 30s. .SATURDAY NIGHT...Clear, cold with lows 10 to 15. .SUNDAY...Partly cloudy. Highs in the upper 30s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 16 to 22. .MONDAY...Mostly sunny. Highs around 50. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 20s. .TUESDAY...Partly cloudy. A slight chance of. Highs around 50. $$ WYZ006-181100- Southeast Bighorn Basin- Including the cities of Ten Sleep and Worland 101 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST THURSDAY... .REST OF TONIGHT...Partly cloudy. Cooler with lows in the lower 20s. Southeast winds around 10 mph with gusts up to 20 mph. .WEDNESDAY...Partly cloudy. Snow likely in the afternoon. Snow accumulation up to 1 inch. Breezy with highs in the mid 40s. South winds 10 to 15 mph with gusts up to 25 mph, becoming northwest 15 to 20 mph with gusts up to 40 mph in the afternoon. Chance of snow 60 percent. .WEDNESDAY NIGHT...Snow. Snow accumulation of 1 to 4 inches. Breezy, cold with lows around 10 above. Northwest winds 20 to 25 mph with gusts up to 40 mph, diminishing to 10 to 15 mph with gusts up to 25 mph after midnight. Chance of snow 90 percent. .THURSDAY...Mostly cloudy. Snow likely in the morning, then a chance of snow showers in the afternoon. New little or no snow accumulation. Much cooler with highs around 20. Chance of snow 60 percent. .THURSDAY NIGHT...Partly cloudy. Cold with lows zero to 6 above zero. .FRIDAY...Partly cloudy. Highs in the upper 20s. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 5 to 10 above. .SATURDAY...Sunny. Highs in the lower 30s. .SATURDAY NIGHT...Clear, cold with lows 5 to 15 above. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs around 40. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 13 to 23. .MONDAY...Mostly sunny. Highs around 50. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 20s. .TUESDAY...Partly cloudy. Highs around 50. $$ WYZ005-181100- Southwest Bighorn Basin- Including the city of Thermopolis 101 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST THURSDAY... .REST OF TONIGHT...Partly cloudy. Cooler with lows in the lower 20s. South winds around 10 mph with gusts up to 25 mph. .WEDNESDAY...Partly cloudy in the morning, then mostly cloudy with snow likely in the afternoon. Snow accumulation up to 1 inch. Breezy with highs in the mid 40s. Temperature falling into the mid 30s in the afternoon. South winds 10 to 15 mph with gusts up to 30 mph, increasing to northwest 20 to 25 mph with gusts up to 40 mph in the afternoon. Chance of snow 60 percent. .WEDNESDAY NIGHT...Snow. Snow accumulation of 1 to 4 inches. Breezy, cold with lows around 10 above. Northwest winds 20 to 25 mph with gusts up to 40 mph, diminishing to 10 to 15 mph with gusts up to 25 mph after midnight. Chance of snow 90 percent. .THURSDAY...Mostly cloudy. Snow likely in the morning, then a chance of snow showers in the afternoon. New little or no snow accumulation. Much colder with highs around 20. Chance of snow 60 percent. .THURSDAY NIGHT...Partly cloudy. Cold with lows zero to 6 above zero. .FRIDAY...Partly cloudy. A slight chance of. Highs in the upper 20s. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 5 to 10 above. .SATURDAY...Sunny. Highs in the lower 30s. .SATURDAY NIGHT...Clear, cold with lows 5 to 15 above. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the mid 30s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 13 to 21. .MONDAY...Mostly sunny. Highs in the upper 40s. .MONDAY NIGHT...Partly cloudy. Lows in the mid 20s. .TUESDAY...Partly cloudy with a slight chance of snow showers. A slight chance of rain showers in the afternoon. Breezy with highs around 50. Chance of precipitation 20 percent. $$ WYZ023-181100- Star Valley- Including the cities of Afton, Alpine, Star Valley Ranch, and Thayne 101 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... .REST OF TONIGHT...Snow. Snow accumulation up to 3 inches. Cold with lows around 20. South winds around 10 mph. Chance of snow 80 percent. .WEDNESDAY...A slight chance of thunderstorms. Snow. Storm total snow accumulation of 3 to 5 inches. Highs in the lower 30s. West winds 10 to 15 mph. Chance of snow 90 percent. .WEDNESDAY NIGHT...Cloudy. Snow, mainly in the evening. New snow accumulation up to 1 inch. Cold with lows around 10 above. West winds 10 to 15 mph in the evening. Chance of snow 80 percent. .THURSDAY...A chance of snow in the morning, then snow showers likely in the afternoon. Little or no snow accumulation. Highs in the lower 20s. Chance of snow 60 percent. .THURSDAY NIGHT...Mostly cloudy. A slight chance of snow showers after midnight. Cold with lows 1 below to 3 above zero. Chance of snow 20 percent. .FRIDAY...Mostly cloudy with a chance of snow showers in the morning, then partly cloudy with snow showers likely in the afternoon. Little or no snow accumulation. Highs in the mid 20s. Chance of snow 60 percent. .FRIDAY NIGHT...Partly cloudy. A chance of snow showers in the evening. Cold with lows around 5 above. Chance of snow 30 percent. .SATURDAY...Partly cloudy in the morning, then clearing. A slight chance of. Highs around 30. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Cold with lows 5 to 10 above. .SUNDAY...Partly cloudy in the morning, then becoming mostly cloudy. Highs around 40. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 15 to 20. .MONDAY...Mostly sunny. A chance of snow showers with a slight chance of rain showers in the afternoon. Highs around 40. Chance of precipitation 30 percent. .MONDAY NIGHT...Partly cloudy with a chance of snow and rain showers in the evening, then mostly cloudy with snow showers likely after midnight. Light snow accumulation possible. Lows in the mid 20s. Chance of precipitation 60 percent. .TUESDAY...Snow showers. New light snow accumulation. Highs in the upper 30s. Chance of snow 80 percent. $$ WYZ025-181100- Upper Green River Basin Foothills- Including the city of Pinedale 101 AM MST Wed Feb 18 2026 .REST OF TONIGHT...Cloudy with snow. Snow accumulation up to 1 inch. Colder with lows 5 to 13 above. South winds around 10 mph. Chance of snow 80 percent. .WEDNESDAY...Snow. A slight chance of thunderstorms in the afternoon. Snow accumulation of 1 to 4 inches. Breezy with highs around 30. South winds 10 to 15 mph, becoming west 15 to 20 mph in the afternoon. Chance of snow 80 percent. .WEDNESDAY NIGHT...Mostly cloudy. Snow likely, mainly in the evening. New snow accumulation up to 1 inch. Cold with lows around 6 above. West winds 10 to 15 mph. Gusts up to 30 mph in the evening. Chance of snow 60 percent. .THURSDAY...Mostly cloudy. A chance of snow in the morning, then a chance of snow showers in the afternoon. Cold with highs around 20. West winds around 10 mph in the afternoon. Chance of snow 40 percent. .THURSDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Cold with lows 3 below to 7 below zero. .FRIDAY...Mostly cloudy with a slight chance of snow showers in the morning, then partly cloudy with a chance of snow showers in the afternoon. Highs in the lower 20s. Chance of snow 30 percent. .FRIDAY NIGHT...Partly cloudy. Cold with lows 5 below to zero. .SATURDAY...Mostly sunny. Highs in the mid 20s. .SATURDAY NIGHT...Mostly clear. Cold with lows zero to 5 above zero. .SUNDAY...Partly cloudy. Highs in the lower 30s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows around 10 above. .MONDAY...Mostly sunny. A slight chance of. Highs around 40. .MONDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A 40 percent chance of snow showers. Cold with lows around 20. .TUESDAY...Snow showers. Light snow accumulation. Highs in the mid 30s. Chance of snow 80 percent. $$ WYZ026-181100- Upper Green River Basin- Including the cities of La Barge, Big Piney, and Farson 101 AM MST Wed Feb 18 2026 .REST OF TONIGHT...Mostly cloudy with snow likely. Snow accumulation up to 1 inch. Cold with lows 13 to 19. South winds around 10 mph. Chance of snow 60 percent. .WEDNESDAY...Snow. A slight chance of thunderstorms in the afternoon. Snow accumulation up to 2 inches. Breezy with highs in the mid 30s. South winds 10 to 15 mph with gusts up to 25 mph, becoming west 15 to 20 mph with gusts up to 35 mph in the afternoon. Chance of snow 80 percent. .WEDNESDAY NIGHT...Mostly cloudy with a chance of snow in the evening, then partly cloudy after midnight. Breezy, cold with lows 4 to 8 above. West winds 15 to 20 mph. Gusts up to 35 mph in the evening. Chance of snow 30 percent. .THURSDAY...Partly cloudy. Highs in the lower 20s. West winds 10 to 15 mph. .THURSDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Cold with lows 2 below to 4 above zero. Northwest winds around 10 mph in the evening. .FRIDAY...Mostly cloudy in the morning, then becoming partly cloudy. A 20 percent chance of snow showers. Highs in the upper 20s. .FRIDAY NIGHT...Mostly clear. Cold with lows 5 below to 5 above zero. .SATURDAY...Mostly sunny. Highs in the upper 20s. .SATURDAY NIGHT...Mostly clear. Cold with lows 5 to 10 above. .SUNDAY...Partly cloudy. Highs in the mid 30s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 10 to 15. .MONDAY...Mostly sunny. Highs in the lower 40s. .MONDAY NIGHT...Partly cloudy. A slight chance of. Cold with lows around 20. .TUESDAY...Mostly cloudy with a 30 percent chance of snow showers. Highs in the lower 40s. $$ WYZ010-181100- Northeast Johnson County- Including the city of Buffalo 101 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST THURSDAY... .REST OF TONIGHT...Mostly clear. Much colder with lows around 17. Southwest winds around 10 mph. .WEDNESDAY...Partly cloudy. A chance of snow in the afternoon. Breezy, cooler with highs in the mid 30s. North winds around 10 mph, increasing to 15 to 20 mph with gusts up to 30 mph in the afternoon. Chance of snow 30 percent. .WEDNESDAY NIGHT...Snow. Snow accumulation of 2 to 3 inches. Breezy, cold with lows around 6 above. North winds 15 to 20 mph. Gusts up to 35 mph in the evening. Chance of snow 90 percent. .THURSDAY...Cloudy. Snow likely in the morning, then a chance of snow showers in the afternoon. New little or no snow accumulation. Colder with highs around 13. North winds around 10 mph in the morning. Chance of snow 60 percent. .THURSDAY NIGHT...Partly cloudy. Cold with lows 2 below to 2 above zero. .FRIDAY...Partly cloudy. Highs in the upper 20s. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 5 to 10 above. .SATURDAY...Mostly sunny. Highs in the lower 30s. .SATURDAY NIGHT...Mostly clear. Cold with lows 5 to 10 above. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the mid 30s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 15 to 20. .MONDAY...Mostly sunny. Highs in the lower 50s. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 20s. .TUESDAY...Partly cloudy. A slight chance of. Highs around 50. $$ WYZ011-181100- Southeast Johnson County- Including the city of Kaycee 101 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST THURSDAY... .REST OF TONIGHT...Partly cloudy. Colder with lows around 19. South winds around 10 mph with gusts up to 20 mph. .WEDNESDAY...Partly cloudy. Snow likely in the afternoon. Snow accumulation up to 1 inch. Breezy with highs around 40. South winds around 10 mph with gusts up to 20 mph, becoming north 15 to 20 mph with gusts up to 30 mph in the afternoon. Chance of snow 60 percent. .WEDNESDAY NIGHT...Snow. Snow accumulation of 1 to 3 inches. Breezy, cold with lows around 6 above. North winds 15 to 20 mph. Gusts up to 35 mph in the evening. Chance of snow 90 percent. .THURSDAY...Cloudy. Snow likely in the morning, then a chance of snow showers in the afternoon. New little or no snow accumulation. Much colder with highs around 15. North winds around 10 mph in the morning. Chance of snow 60 percent. .THURSDAY NIGHT...Partly cloudy. Cold with lows 3 below to 1 above zero. .FRIDAY...Partly cloudy in the morning, then becoming mostly cloudy. A slight chance of. Highs in the upper 20s. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 5 to 10 above. .SATURDAY...Mostly sunny. Highs in the lower 30s. .SATURDAY NIGHT...Clear, cold with lows 5 to 10 above. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the mid 30s. .SUNDAY NIGHT...Mostly cloudy in the evening, then clearing. Cold with lows around 20. .MONDAY...Mostly sunny and breezy. Highs in the lower 50s. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 30. .TUESDAY...Partly cloudy in the morning, then becoming mostly cloudy. Breezy with highs around 50. $$ WYZ027-181100- South Lincoln County- Including the cities of Kemmerer and Cokeville 101 AM MST Wed Feb 18 2026 .REST OF TONIGHT...Mostly cloudy with snow likely. Snow accumulation up to 2 inches. Cold. Near steady temperature in the lower 20s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of snow 60 percent. .WEDNESDAY...Snow. Storm total snow accumulation of 1 to 3 inches. Breezy with highs in the lower 30s. Southwest winds 10 to 15 mph with gusts up to 25 mph, becoming west 15 to 25 mph with gusts up to 40 mph in the afternoon. Chance of snow 80 percent. .WEDNESDAY NIGHT...Partly cloudy and breezy, cold with lows around 9 above. West winds 20 to 25 mph with gusts up to 40 mph, diminishing to 10 to 15 mph with gusts up to 30 mph after midnight. .THURSDAY...Partly cloudy. Highs in the lower 20s. West winds 10 to 15 mph with gusts up to 25 mph. .THURSDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Cold with lows 5 to 9 above. North winds around 10 mph, becoming northeast after midnight. .FRIDAY...Mostly cloudy in the morning, then becoming partly cloudy. A 30 percent chance of snow showers. Highs in the mid 20s. .FRIDAY NIGHT...Mostly clear. Cold with lows 5 to 10 above. .SATURDAY...Mostly sunny. Highs around 30. .SATURDAY NIGHT...Mostly clear. Cold with lows around 10 above. .SUNDAY...Partly cloudy. Highs in the mid 30s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 15 to 20. .MONDAY...Mostly sunny. Highs in the lower 40s. .MONDAY NIGHT...Partly cloudy. A slight chance of snow showers after midnight. Lows in the mid 20s. Chance of snow 20 percent. .TUESDAY...Mostly cloudy with a 30 percent chance of snow showers. Breezy with highs in the lower 40s. $$ WYZ016-181100- Upper Wind River Basin- Including the city of Dubois 101 AM MST Wed Feb 18 2026 .REST OF TONIGHT...Partly cloudy with a 30 percent chance of snow. Cold with lows 14 to 18. Northeast winds around 10 mph. .WEDNESDAY...Mostly cloudy. A chance of snow in the morning, then snow in the afternoon. Snow accumulation up to 2 inches. Highs in the mid 30s. East winds around 10 mph, becoming northwest with gusts up to 30 mph in the afternoon. Chance of snow 80 percent. .WEDNESDAY NIGHT...Mostly cloudy. Snow, mainly in the evening. Storm total snow accumulation of 1 to 3 inches. Cold with lows around 9 above. Northwest winds 10 to 15 mph, becoming west after midnight. Chance of snow 80 percent. .THURSDAY...Mostly cloudy with a chance of snow in the morning, then partly cloudy with a chance of snow showers in the afternoon. Cold with highs around 20. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of snow 30 percent. .THURSDAY NIGHT...Partly cloudy. Cold with lows 1 below to 3 above zero. West winds around 10 mph. .FRIDAY...Partly cloudy. A chance of snow showers in the afternoon. Highs in the mid 20s. Chance of snow 30 percent. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows around 5 above. .SATURDAY...Sunny. Highs around 30. .SATURDAY NIGHT...Mostly clear. Cold with lows around 10 above. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the mid 30s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows around 20. .MONDAY...Mostly sunny. Highs in the mid 40s. .MONDAY NIGHT...Partly cloudy with a 30 percent chance of snow showers. Lows in the mid 20s. .TUESDAY...Partly cloudy. A chance of snow showers in the morning, then snow showers likely in the afternoon. Little or no snow accumulation. Breezy with highs around 40. Chance of snow 60 percent. $$ WYZ001-181100- Yellowstone National Park- Including the cities of Lake, Mammoth, and Old Faithful 101 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... .REST OF TONIGHT...Mostly cloudy with snow likely. Snow accumulation up to 3 inches. Cold with lows 6 to 12 above. South winds around 10 mph. Chance of snow 60 percent. .WEDNESDAY...Mostly cloudy with snow. New snow accumulation of 1 to 6 inches. Highs in the mid 20s. South winds around 10 mph, becoming west with gusts up to 25 mph in the afternoon. Chance of snow 80 percent. .WEDNESDAY NIGHT...Cloudy with snow. New snow accumulation up to 3 inches. Cold with lows 1 to 7 above. West winds 10 to 15 mph with gusts up to 25 mph. Chance of snow 80 percent. .THURSDAY...Snow likely in the morning, then snow showers in the afternoon. New light snow accumulation. Cold with highs 13 to 19. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of snow 80 percent. .THURSDAY NIGHT...Partly cloudy. A chance of snow showers in the evening. Cold with lows 2 below to 8 below zero. Southwest winds around 10 mph with gusts up to 20 mph in the evening. Chance of snow 30 percent. .FRIDAY...Partly cloudy. A chance of snow showers in the afternoon. Cold with highs 16 to 22. Chance of snow 30 percent. .FRIDAY NIGHT...Partly cloudy. A chance of snow showers in the evening. Cold with lows 5 below to 5 above zero. Chance of snow 30 percent. .SATURDAY...Partly cloudy. A chance of snow showers in the afternoon. Highs in the lower 20s. Chance of snow 30 percent. .SATURDAY NIGHT...Mostly clear. Cold with lows zero to 5 above zero. .SUNDAY...Mostly cloudy. Highs in the lower 30s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 10 to 15. .MONDAY...Mostly sunny with a slight chance of snow showers in the morning, then partly cloudy with a chance of snow showers in the afternoon. Highs in the mid 30s. Chance of snow 30 percent. .MONDAY NIGHT...Partly cloudy with a chance of snow showers in the evening, then mostly cloudy with snow showers likely after midnight. Light snow accumulation possible. Cold with lows around 20. Chance of snow 70 percent. .TUESDAY...Snow showers. New moderate snow accumulation. Breezy with highs in the upper 20s. Chance of snow 80 percent. $$ WYZ029-181100- Flaming Gorge- 101 AM MST Wed Feb 18 2026 .REST OF TONIGHT...Partly cloudy with a 30 percent chance of snow. Breezy. Near steady temperature in the lower 20s. South winds 15 to 20 mph with gusts up to 35 mph. .WEDNESDAY...Mostly cloudy. A chance of snow in the morning, then snow in the afternoon. Storm total snow accumulation around an inch. Windy with highs in the upper 30s. Temperature falling to around 30 in the afternoon. South winds 20 to 30 mph, becoming west in the afternoon. Gusts up to 50 mph. Chance of snow 80 percent. .WEDNESDAY NIGHT...Mostly cloudy with a chance of snow in the evening, then partly cloudy after midnight. Windy, cold with lows 10 to 14. West winds 20 to 30 mph with gusts up to 50 mph, diminishing to 15 to 20 mph with gusts up to 35 mph after midnight. Chance of snow 30 percent. .THURSDAY...Partly cloudy. Highs in the mid 20s. West winds 10 to 15 mph with gusts up to 25 mph. .THURSDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Cold with lows around 10 above. South winds around 10 mph with gusts up to 20 mph, becoming east after midnight. .FRIDAY...Cloudy with a 30 percent chance of snow showers. Breezy with highs in the upper 20s. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Breezy, cold with lows around 10 above. .SATURDAY...Mostly sunny. Highs in the lower 30s. .SATURDAY NIGHT...Mostly clear. Cold with lows 10 to 15. .SUNDAY...Partly cloudy in the morning, then becoming mostly cloudy. Highs in the upper 30s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows around 20. .MONDAY...Mostly sunny. Highs in the mid 40s. .MONDAY NIGHT...Partly cloudy. Lows in the mid 20s. .TUESDAY...Mostly cloudy. A slight chance of snow showers in the morning, then a chance of snow showers in the afternoon. Breezy with highs in the mid 40s. Chance of snow 30 percent. $$ WYZ022-181100- Casper Mountain- 101 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST THURSDAY... .REST OF TONIGHT...Partly cloudy and breezy, cold. Near steady temperature in the lower 20s. Southwest winds 15 to 20 mph with gusts up to 30 mph. .WEDNESDAY...Mostly cloudy. A chance of snow in the morning, then snow likely in the afternoon. Snow accumulation up to 1 inch. Breezy with highs in the mid 30s. Southwest winds 15 to 20 mph with gusts up to 35 mph. Chance of snow 70 percent. .WEDNESDAY NIGHT...Snow. Storm total snow accumulation of 3 to 5 inches. Cold with lows 2 to 8 above. Northwest winds 10 to 15 mph with gusts up to 35 mph. Chance of snow 90 percent. .THURSDAY...Mostly cloudy. A chance of snow in the morning, then a chance of snow showers in the afternoon. New little or no snow accumulation. Colder with highs 12 to 18. West winds 10 to 15 mph with gusts up to 25 mph. Chance of snow 50 percent. .THURSDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 1 below to 5 above zero. Southwest winds around 10 mph in the evening. .FRIDAY...Mostly cloudy. A slight chance of snow showers in the morning, then a chance of snow showers in the afternoon. Highs in the lower 20s. Chance of snow 40 percent. .FRIDAY NIGHT...Partly cloudy with a chance of snow showers in the evening, then mostly clear with a slight chance of snow showers after midnight. Cold with lows zero to 10 above zero. Chance of snow 30 percent. .SATURDAY...Mostly sunny. Highs in the lower 20s. .SATURDAY NIGHT...Clear, cold with lows 5 to 10 above. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the lower 30s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows around 20. .MONDAY...Mostly sunny and breezy. Highs in the upper 30s. .MONDAY NIGHT...Partly cloudy and breezy. Lows in the upper 20s. .TUESDAY...Partly cloudy. A slight chance of snow showers in the afternoon. Breezy with highs around 40. Chance of snow 20 percent. $$ WYZ002-181100- Absaroka Mountains- 101 AM MST Wed Feb 18 2026 .REST OF TONIGHT...Mostly cloudy with a 30 percent chance of snow. Cold with lows 5 to 15 above. Southwest winds 10 to 15 mph with gusts up to 30 mph. .WEDNESDAY...Mostly cloudy. A chance of snow in the morning, then snow in the afternoon. Snow accumulation around 5 inches. Breezy with highs in the lower 20s. Southwest winds 10 to 15 mph with gusts up to 25 mph, becoming west 15 to 20 mph with gusts up to 35 mph in the afternoon. Chance of snow 80 percent. .WEDNESDAY NIGHT...Cloudy with snow. Storm total snow accumulation of 3 to 5 inches. Breezy, cold with lows 2 below to 6 above zero. West winds 15 to 20 mph with gusts up to 35 mph. Chance of snow 80 percent. .THURSDAY...Mostly cloudy. A chance of snow in the morning, then snow showers likely in the afternoon. New little or no snow accumulation. Cold with highs 4 to 16 above. West winds 10 to 15 mph with gusts up to 30 mph. Chance of snow 60 percent. .THURSDAY NIGHT...Partly cloudy. A slight chance of snow showers in the evening. Cold with lows 9 below to 1 above zero. West winds 10 to 15 mph with gusts up to 25 mph. Chance of snow 20 percent. .FRIDAY...Partly cloudy. A chance of snow showers in the afternoon. Cold with highs 9 to 21 above. Chance of snow 30 percent. Lowest wind chill readings wind chill readings as low as 20 below in the morning. .FRIDAY NIGHT...Partly cloudy. A chance of snow showers in the evening. Brisk, cold with lows 5 below to 5 above zero. Chance of snow 30 percent. .SATURDAY...Mostly sunny and breezy, cold with highs around 20. Lowest wind chill readings wind chill readings as low as 25 below in the morning. .SATURDAY NIGHT...Mostly clear. Cold with lows zero to 10 above zero. .SUNDAY...Partly cloudy. Highs in the upper 20s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 12 to 20. .MONDAY...Mostly sunny. A slight chance of snow showers in the afternoon. Breezy with highs in the mid 30s. Chance of snow 20 percent. .MONDAY NIGHT...Partly cloudy with a 40 percent chance of snow showers. Breezy with lows in the lower 20s. .TUESDAY...Snow showers likely. Light snow accumulation possible. Breezy with highs in the upper 20s. Chance of snow 70 percent. $$ WYZ007-181100- Owl Creek and Bridger Mountains- 101 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST THURSDAY... .REST OF TONIGHT...Partly cloudy. Lows in the lower 20s. South winds 10 to 15 mph with gusts up to 30 mph. .WEDNESDAY...Partly cloudy in the morning, then mostly cloudy with snow likely in the afternoon. Snow accumulation up to 3 inches. Breezy with highs in the upper 30s. South winds 15 to 20 mph, becoming north 20 to 25 mph in the afternoon. Gusts up to 40 mph. Chance of snow 60 percent. .WEDNESDAY NIGHT...Snow. Storm total snow accumulation of 3 to 5 inches. Breezy, cold with lows 5 to 11 above. North winds 20 to 25 mph with gusts up to 40 mph, diminishing to 10 to 15 mph with gusts up to 25 mph after midnight. Chance of snow 90 percent. .THURSDAY...Mostly cloudy. Snow likely in the morning, then a chance of snow showers in the afternoon. New little or no snow accumulation. Colder with highs 12 to 18. North winds around 10 mph in the morning. Chance of snow 60 percent. .THURSDAY NIGHT...Partly cloudy. A slight chance of snow showers in the evening. Cold with lows 2 to 8 above. Chance of snow 20 percent. .FRIDAY...Partly cloudy. A slight chance of. Highs in the lower 20s. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 5 to 10 above. .SATURDAY...Sunny. Highs in the mid 20s. .SATURDAY NIGHT...Clear, cold with lows 10 to 15. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the lower 30s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows around 20. .MONDAY...Mostly sunny. Highs in the lower 40s. .MONDAY NIGHT...Partly cloudy. A slight chance of. Lows in the upper 20s. .TUESDAY...Partly cloudy. A slight chance of snow showers in the morning, then a chance of snow showers in the afternoon. Breezy with highs in the lower 40s. Chance of snow 30 percent. $$ WYZ008-181100- Bighorn Mountains West- 101 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST THURSDAY... .REST OF TONIGHT...Partly cloudy and cold. Near steady temperature around 18. South winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY...Mostly cloudy. A chance of snow in the morning, then snow likely in the afternoon. Snow accumulation up to 6 inches. Breezy with highs in the lower 30s. South winds 15 to 20 mph with gusts up to 35 mph. Chance of snow 60 percent. .WEDNESDAY NIGHT...Snow. New snow accumulation of 1 to 5 inches. Breezy, cold with lows 1 below to 9 above zero. Northwest winds 15 to 20 mph with gusts up to 35 mph, becoming west around 10 mph with gusts up to 20 mph after midnight. Chance of snow 90 percent. .THURSDAY...Mostly cloudy. Snow in the morning, then a chance of snow showers in the afternoon. New light snow accumulation. Colder with highs 4 to 16 above. West winds around 10 mph. Chance of snow 80 percent. .THURSDAY NIGHT...Partly cloudy. A chance of snow showers in the evening. Cold with lows 4 below to 8 above zero. West winds around 10 mph. Chance of snow 30 percent. .FRIDAY...Partly cloudy. A chance of snow showers in the afternoon. Cold with highs around 20. Chance of snow 30 percent. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows zero to 10 above zero. .SATURDAY...Mostly sunny. A slight chance of. Highs in the lower 20s. .SATURDAY NIGHT...Clear, cold with lows 5 to 15 above. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the lower 30s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 14 to 24. .MONDAY...Mostly sunny. Highs around 40. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. A slight chance of. Breezy with lows in the upper 20s. .TUESDAY...Mostly cloudy with a 40 percent chance of snow showers. Breezy with highs in the mid 30s. $$ WYZ009-181100- Bighorn Mountains Southeast- 101 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST THURSDAY... .REST OF TONIGHT...Partly cloudy and breezy, cold with lows 12 to 22. Southwest winds 15 to 20 mph with gusts up to 30 mph. .WEDNESDAY...Partly cloudy in the morning, then mostly cloudy with snow likely in the afternoon. Snow accumulation around 5 inches. Breezy with highs in the upper 20s. Southwest winds 15 to 20 mph, becoming northeast in the afternoon. Gusts up to 35 mph. Chance of snow 70 percent. .WEDNESDAY NIGHT...Snow. Storm total snow accumulation of 4 to 6 inches. Blustery, cold with lows zero to 6 above zero. North winds 15 to 20 mph. Gusts up to 35 mph in the evening. Chance of snow 90 percent. .THURSDAY...Mostly cloudy. Snow in the morning, then a chance of snow showers in the afternoon. New little or no snow accumulation. Colder with highs 6 to 14 above. West winds around 10 mph with gusts up to 20 mph. Chance of snow 80 percent. .THURSDAY NIGHT...Partly cloudy. Cold with lows 3 below to 5 above zero. West winds around 10 mph with gusts up to 20 mph. .FRIDAY...Partly cloudy. A chance of snow showers in the afternoon. Cold with highs 15 to 23. Chance of snow 30 percent. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows zero to 10 above zero. .SATURDAY...Sunny. Highs in the lower 20s. .SATURDAY NIGHT...Clear, cold with lows 5 to 10 above. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs around 30. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 16 to 22. .MONDAY...Mostly sunny and breezy. Highs in the lower 40s. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Breezy with lows in the upper 20s. .TUESDAY...Partly cloudy. A chance of snow showers in the afternoon. Windy with highs in the upper 30s. Chance of snow 30 percent. $$ WYZ012-181100- Teton and Gros Ventre Mountains- 101 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... .REST OF TONIGHT...Snow. Snow accumulation up to 4 inches. Cold with lows 6 to 14 above. South winds 10 to 15 mph with gusts up to 30 mph. Chance of snow 80 percent. .WEDNESDAY...Snow. A slight chance of thunderstorms in the afternoon. New snow accumulation of 1 to 7 inches. Breezy with highs in the mid 20s. Southwest winds around 10 mph with gusts up to 25 mph, becoming west 15 to 20 mph with gusts up to 40 mph in the afternoon. Chance of snow 90 percent. .WEDNESDAY NIGHT...Snow. New snow accumulation up to 4 inches. Breezy, cold with lows 1 to 9 above. Southwest winds 15 to 20 mph. Gusts up to 40 mph, decreasing to 30 mph after midnight. Chance of snow 90 percent. .THURSDAY...Snow in the morning, then snow showers in the afternoon. New light snow accumulation. Cold with highs 10 to 18. West winds 10 to 15 mph with gusts up to 30 mph. Chance of snow 80 percent. .THURSDAY NIGHT...Partly cloudy. A chance of snow showers in the evening. Cold with lows 1 below to 7 below zero. Southwest winds around 10 mph, becoming east after midnight. Gusts up to 25 mph. Chance of snow 30 percent. .FRIDAY...Partly cloudy. A slight chance of snow showers in the morning, then a chance of snow showers in the afternoon. Cold with highs 13 to 21. Chance of snow 40 percent. .FRIDAY NIGHT...Partly cloudy with a 30 percent chance of snow showers. Cold with lows 5 below to 5 above zero. .SATURDAY...Partly cloudy in the morning, then mostly sunny with a chance of snow showers in the afternoon. Highs in the lower 20s. Chance of snow 30 percent. .SATURDAY NIGHT...Mostly clear. Cold with lows zero to 5 above zero. .SUNDAY...Partly cloudy. A slight chance of. Highs in the lower 30s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 10 to 15. .MONDAY...Mostly sunny. A slight chance of snow showers in the morning, then a chance of snow showers in the afternoon. Highs in the lower 30s. Chance of snow 30 percent. .MONDAY NIGHT...Partly cloudy with a chance of snow showers in the evening, then snow showers likely after midnight. Light snow accumulation possible. Lows in the lower 20s. Chance of snow 60 percent. .TUESDAY...Snow showers. New moderate snow accumulation. Breezy with highs in the upper 20s. Chance of snow 80 percent. $$ WYZ014-181100- Wind River Mountains West- 101 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... .REST OF TONIGHT...Snow. Snow accumulation up to 3 inches. Cold. Near steady temperature around 12. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of snow 80 percent. .WEDNESDAY...Snow. Snow may be heavy at times in the morning. New snow accumulation of 1 to 8 inches. Breezy with highs in the lower 20s. South winds 10 to 15 mph, becoming west 15 to 20 mph in the afternoon. Chance of snow 80 percent. .WEDNESDAY NIGHT...Cloudy. Snow likely, mainly in the evening. Storm total snow accumulation of 6 to 10 inches possible. Brisk, cold with lows 5 below to 5 above zero. West winds 15 to 20 mph with gusts up to 30 mph. Chance of snow 70 percent. .THURSDAY...Mostly cloudy. A chance of snow in the morning, then a chance of snow showers in the afternoon. Cold with highs 4 to 16 above. West winds 10 to 15 mph with gusts up to 30 mph. Chance of snow 40 percent. Wind chill readings wind chill readings as low as 21 below. .THURSDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Cold with lows 1 below to 11 below zero. West winds around 10 mph with gusts up to 20 mph, becoming northwest after midnight. .FRIDAY...Mostly cloudy in the morning, then becoming partly cloudy. A 40 percent chance of snow showers. Cold with highs 8 to 20 above. .FRIDAY NIGHT...Partly cloudy. Cold with lows 10 below to zero. .SATURDAY...Mostly sunny. Cold with highs 13 to 23. Lowest wind chill readings wind chill readings as low as 25 below in the morning. .SATURDAY NIGHT...Mostly clear. Cold with lows zero to 5 above zero. .SUNDAY...Partly cloudy. Highs in the upper 20s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 10 to 15. .MONDAY...Mostly sunny. A slight chance of snow showers in the afternoon. Highs in the lower 30s. Chance of snow 20 percent. .MONDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A 40 percent chance of snow showers. Cold with lows 13 to 21. .TUESDAY...Snow showers likely. Light snow accumulation possible. Breezy with highs in the upper 20s. Chance of snow 70 percent. $$ WYZ015-181100- Wind River Mountains East- 101 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... .REST OF TONIGHT...Snow. Snow may be heavy at times. Snow accumulation up to 3 inches. Breezy, cold. Near steady temperature around 13. Southwest winds 15 to 20 mph with gusts up to 35 mph. Chance of snow 80 percent. .WEDNESDAY...Snow. Snow may be heavy at times in the morning. New snow accumulation up to 8 inches. Breezy with highs in the mid 20s. Southwest winds 15 to 20 mph with gusts up to 35 mph. Chance of snow 80 percent. .WEDNESDAY NIGHT...Mostly cloudy. Snow, mainly in the evening. Storm total snow accumulation of 4 to 8 inches. Breezy, cold with lows 5 below to 7 above zero. West winds 15 to 25 mph with gusts up to 40 mph. Chance of snow 80 percent. .THURSDAY...Mostly cloudy with a chance of snow in the morning, then partly cloudy with a chance of snow showers in the afternoon. Blustery, cold with highs 2 to 16 above. West winds 15 to 20 mph with gusts up to 35 mph. Chance of snow 40 percent. Wind chill readings wind chill readings as low as 24 below. .THURSDAY NIGHT...Partly cloudy. A slight chance of snow showers in the evening, then a chance of snow showers after midnight. Cold with lows 10 below to 2 above zero. West winds 10 to 15 mph with gusts up to 25 mph. Chance of snow 30 percent. .FRIDAY...Mostly cloudy in the morning, then becoming partly cloudy. A 40 percent chance of snow showers. Cold with highs 8 to 20 above. Wind chill readings wind chill readings as low as 25 below. .FRIDAY NIGHT...Partly cloudy with a chance of snow showers in the evening, then mostly clear after midnight. Brisk, cold with lows 5 below to 5 above zero. Chance of snow 30 percent. Wind chill readings wind chill readings as low as 30 below. .SATURDAY...Sunny, brisk, cold with highs around 20. Lowest wind chill readings wind chill readings as low as 30 below in the morning. .SATURDAY NIGHT...Mostly clear. Cold with lows zero to 10 above zero. .SUNDAY...Partly cloudy. Highs in the upper 20s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 10 to 20. .MONDAY...Mostly sunny. A slight chance of. Breezy with highs in the lower 30s. .MONDAY NIGHT...Partly cloudy with a 40 percent chance of snow showers. Breezy, cold with lows 13 to 25. .TUESDAY...Snow showers likely. Light snow accumulation possible. Windy with highs in the upper 20s. Chance of snow 60 percent. $$ WYZ019-181100- Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 101 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST THURSDAY... .REST OF TONIGHT...Partly cloudy with a 30 percent chance of snow. Cold with lows around 20. Southwest winds 10 to 15 mph with gusts up to 30 mph. .WEDNESDAY...Mostly cloudy. A chance of snow in the morning, then snow likely in the afternoon. Snow accumulation up to 4 inches. Breezy with highs in the upper 30s. Southwest winds 15 to 25 mph with gusts up to 40 mph. Chance of snow 70 percent. .WEDNESDAY NIGHT...Mostly cloudy with snow. Storm total snow accumulation of 2 to 4 inches. Breezy, cold with lows 5 to 11 above. Northwest winds 15 to 20 mph with gusts up to 35 mph. Chance of snow 80 percent. .THURSDAY...Mostly cloudy with a chance of snow in the morning, then partly cloudy in the afternoon. Breezy, cooler with highs around 20. West winds 15 to 20 mph with gusts up to 30 mph. Chance of snow 30 percent. .THURSDAY NIGHT...Partly cloudy. Cold with lows zero to 6 above zero. Southwest winds 10 to 15 mph with gusts up to 25 mph in the evening. .FRIDAY...Mostly cloudy with a 30 percent chance of snow showers. Highs in the lower 20s. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows zero to 5 above zero. .SATURDAY...Sunny. Highs in the mid 20s. .SATURDAY NIGHT...Mostly clear. Cold with lows 5 to 10 above. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the lower 30s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 15 to 21. .MONDAY...Mostly sunny and breezy. Highs in the lower 40s. .MONDAY NIGHT...Partly cloudy and breezy. Lows in the mid 20s. .TUESDAY...Partly cloudy in the morning, then becoming mostly cloudy. A 30 percent chance of snow showers. Breezy with highs in the lower 40s. $$ WYZ024-181100- Salt River and Wyoming Ranges- 101 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... .REST OF TONIGHT...Snow. Snow accumulation up to 4 inches. Breezy, cold. Near steady temperature around 20. Southwest winds 15 to 20 mph with gusts up to 30 mph. Chance of snow 80 percent. .WEDNESDAY...Snow in the morning, then snow with a slight chance of thunderstorms in the afternoon. Snow may be heavy at times in the morning. New snow accumulation of 1 to 8 inches. Breezy with highs in the mid 20s. Southwest winds 10 to 15 mph with gusts up to 30 mph, increasing to west 20 to 25 mph with gusts up to 45 mph in the afternoon. Chance of snow 90 percent. .WEDNESDAY NIGHT...Mostly cloudy. Snow, mainly in the evening. Storm total snow accumulation of 4 to 8 inches. Windy, cold with lows 3 to 9 above. West winds 20 to 30 mph, diminishing to 15 to 20 mph after midnight. Gusts up to 45 mph. Chance of snow 80 percent. .THURSDAY...Mostly cloudy with a chance of snow in the morning, then partly cloudy with snow showers likely in the afternoon. New little or no snow accumulation. Cold with highs 13 to 19. West winds 10 to 15 mph with gusts up to 30 mph. Chance of snow 70 percent. .THURSDAY NIGHT...Partly cloudy in the evening, then mostly cloudy with a chance of snow showers after midnight. Cold with lows 2 below to 4 above zero. West winds around 10 mph with gusts up to 20 mph, becoming east after midnight. Chance of snow 30 percent. .FRIDAY...Mostly cloudy with a chance of snow showers in the morning, then partly cloudy with snow showers likely in the afternoon. Little or no snow accumulation. Blustery, cold with highs around 20. Chance of snow 60 percent. .FRIDAY NIGHT...Partly cloudy. A chance of snow showers in the evening. Brisk, cold with lows zero to 5 above zero. Chance of snow 40 percent. .SATURDAY...Partly cloudy in the morning, then clearing. A slight chance of. Highs in the lower 20s. .SATURDAY NIGHT...Mostly clear. Cold with lows 5 to 10 above. .SUNDAY...Partly cloudy. A slight chance of. Highs in the lower 30s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 10 to 20. .MONDAY...Mostly sunny. A chance of snow showers in the afternoon. Highs in the upper 30s. Chance of snow 30 percent. .MONDAY NIGHT...Partly cloudy. A chance of snow showers in the evening, then snow showers likely after midnight. Light snow accumulation possible. Lows in the lower 20s. Chance of snow 60 percent. .TUESDAY...Snow showers. New light snow accumulation. Breezy with highs in the lower 30s. Chance of snow 80 percent. $$ WYZ030-181100- East Sweetwater County- Including the city of Wamsutter 101 AM MST Wed Feb 18 2026 .REST OF TONIGHT...Partly cloudy and breezy, cold. Near steady temperature in the lower 20s. South winds 15 to 20 mph with gusts up to 35 mph. .WEDNESDAY...Mostly cloudy. A chance of snow in the morning, then snow likely in the afternoon. Snow accumulation around 5 inches. Windy with highs in the upper 30s. South winds 25 to 35 mph, becoming southwest 20 to 30 mph in the afternoon. Gusts up to 50 mph. Chance of snow 60 percent. .WEDNESDAY NIGHT...Mostly cloudy with snow likely in the evening, then partly cloudy after midnight. New snow accumulation up to 2 inches. Windy, cold with lows around 10 above. West winds 20 to 30 mph with gusts up to 50 mph, diminishing to 15 to 20 mph with gusts up to 40 mph after midnight. Chance of snow 60 percent. .THURSDAY...Partly cloudy and breezy. Highs in the mid 20s. West winds 15 to 20 mph with gusts up to 30 mph. .THURSDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Cold with lows 4 to 8 above. Southwest winds around 10 mph with gusts up to 20 mph, becoming southeast after midnight. .FRIDAY...Cloudy with a 30 percent chance of snow showers. Breezy with highs in the mid 20s. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 5 to 10 above. .SATURDAY...Mostly sunny. Highs around 30. .SATURDAY NIGHT...Mostly clear. Cold with lows 5 to 10 above. .SUNDAY...Partly cloudy in the morning, then becoming mostly cloudy. Highs in the mid 30s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Cold with lows 15 to 20. .MONDAY...Mostly sunny and breezy. Highs around 40. .MONDAY NIGHT...Partly cloudy. Lows in the lower 20s. .TUESDAY...Partly cloudy in the morning, then becoming mostly cloudy. A 20 percent chance of snow showers. Breezy with highs in the lower 40s. $$