FPUS55 KRIW 220304 ZFPRIW Zone Forecast Product for Western and Central Wyoming National Weather Service Riverton WY 902 PM MDT Thu May 21 2026 WYZ020-221000- Natrona County Lower Elevations- Including the city of Casper 902 PM MDT Thu May 21 2026 .TONIGHT...Cloudy with rain and snow showers late this evening, then partly cloudy with scattered rain and snow showers after midnight. Little or no snow accumulation. Lows in the lower 30s. Northwest winds 10 to 15 mph, becoming west after midnight. Chance of precipitation 80 percent. .FRIDAY...Mostly sunny. Highs around 60. West winds 10 to 15 mph. .FRIDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 30s. West winds around 10 mph in the evening. .SATURDAY...Mostly sunny. Highs in the upper 60s. West winds 10 to 15 mph with gusts up to 25 mph. .SATURDAY NIGHT...Mostly clear. Lows in the lower 40s. Southwest winds around 10 mph. .SUNDAY...Mostly sunny and breezy. Highs in the upper 70s. .SUNDAY NIGHT...Mostly clear. Lows in the mid 40s. .MEMORIAL DAY...Mostly sunny. Highs around 80. .MONDAY NIGHT...Mostly clear. Lows around 50. .TUESDAY...Partly cloudy. A chance of showers and thunderstorms in the afternoon. Breezy with highs around 80. Chance of rain 30 percent. .TUESDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then partly cloudy with a slight chance of showers after midnight. Breezy with lows in the mid 40s. Chance of rain 30 percent. .WEDNESDAY...Partly cloudy. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 30 percent. .WEDNESDAY NIGHT...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Lows in the mid 40s. Chance of rain 30 percent. .THURSDAY...Partly cloudy in the morning, then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 20 percent. $$ WYZ017-221000- Wind River Basin- Including the cities of Riverton and Shoshoni 902 PM MDT Thu May 21 2026 .TONIGHT...Partly cloudy late this evening, then clearing. Lows in the lower 30s. .FRIDAY...Mostly sunny. Highs around 60. South winds around 10 mph in the afternoon. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the upper 30s. Southeast winds around 10 mph, becoming southwest after midnight. .SATURDAY...Mostly sunny. Highs in the lower 70s. Southwest winds 10 to 15 mph. .SATURDAY NIGHT...Mostly clear. Lows in the lower 40s. Southwest winds 10 to 15 mph. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 70s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the upper 40s. .MEMORIAL DAY...Mostly sunny. Highs in the lower 80s. .MONDAY NIGHT...Partly cloudy. Lows around 50. .TUESDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Breezy with highs in the upper 70s. Chance of rain 30 percent. .TUESDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then partly cloudy with a slight chance of showers after midnight. Breezy with lows in the mid 40s. Chance of rain 40 percent. .WEDNESDAY...Partly cloudy in the morning, then clearing. A slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 20 percent. .WEDNESDAY NIGHT...Mostly clear. A chance of showers with a slight chance of thunderstorms in the evening. Lows in the mid 40s. Chance of rain 30 percent. .THURSDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 20 percent. $$ WYZ018-221000- Lander Foothills- Including the city of Lander 902 PM MDT Thu May 21 2026 .TONIGHT...Partly cloudy late this evening, then clearing. Lows in the lower 30s. .FRIDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 50s. Southeast winds around 10 mph in the afternoon. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 30s. Southwest winds around 10 mph. .SATURDAY...Mostly sunny. Highs around 70. West winds around 10 mph with gusts up to 20 mph in the afternoon. .SATURDAY NIGHT...Partly cloudy. Lows in the lower 40s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 70s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 40s. .MEMORIAL DAY...Mostly sunny. Highs around 80. .MONDAY NIGHT...Partly cloudy. Lows around 50. .TUESDAY...Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Breezy with highs around 80. Chance of rain 20 percent. .TUESDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then partly cloudy with a slight chance of showers after midnight. Lows in the mid 40s. Chance of rain 30 percent. .WEDNESDAY...Partly cloudy in the morning, then mostly sunny with a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 30 percent. .WEDNESDAY NIGHT...Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the mid 40s. Chance of rain 20 percent. .THURSDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 20 percent. $$ WYZ028-221000- Rock Springs and Green River- Including the cities of Rock Springs and Green River 902 PM MDT Thu May 21 2026 .TONIGHT...Partly cloudy late this evening, then clearing. Lows around 30. East winds 10 to 15 mph, becoming southeast after midnight. .FRIDAY...Partly cloudy in the morning, then becoming mostly cloudy. Highs around 60. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 30s. .SATURDAY...Mostly sunny. Highs around 70. Southwest winds around 10 mph, becoming west with gusts up to 25 mph in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows around 40. West winds 10 to 15 mph with gusts up to 25 mph, becoming southwest after midnight. .SUNDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers and thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 30 percent. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 40s. .MEMORIAL DAY...Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 30 percent. .MONDAY NIGHT...Partly cloudy. Lows in the mid 40s. .TUESDAY...Partly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 30 percent. .TUESDAY NIGHT...Partly cloudy. Lows around 40. .WEDNESDAY...Partly cloudy in the morning, then clearing. A slight chance of. Breezy with highs around 70. .WEDNESDAY NIGHT...Mostly clear. Lows around 40. .THURSDAY...Sunny. A slight chance of. Highs around 70. $$ WYZ013-221000- Jackson Hole- Including the city of Jackson 902 PM MDT Thu May 21 2026 .TONIGHT...Mostly clear. Lows in the upper 20s. .FRIDAY...Partly cloudy. Highs in the upper 50s. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 30s. .SATURDAY...Mostly sunny. Highs in the upper 60s. South winds around 10 mph, becoming west in the afternoon. .SATURDAY NIGHT...Partly cloudy in the evening, then clearing. Lows around 40. Southwest winds around 10 mph with gusts up to 25 mph, becoming south after midnight. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. A slight chance of rain showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 20 percent. .SUNDAY NIGHT...Partly cloudy. Lows around 40. .MEMORIAL DAY...Mostly sunny. A slight chance of. Highs in the mid 70s. .MONDAY NIGHT...Partly cloudy. Lows around 40. .TUESDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers with a slight chance of thunderstorms in the afternoon. Highs around 70. Chance of rain 40 percent. .TUESDAY NIGHT...Mostly cloudy with a chance of rain showers with a slight chance of thunderstorms in the evening, then partly cloudy with a slight chance of rain showers after midnight. Lows around 40. Chance of rain 40 percent. .WEDNESDAY...Partly cloudy in the morning, then mostly sunny with a chance of rain showers and thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 40 percent. .WEDNESDAY NIGHT...Partly cloudy in the evening, then clearing. A slight chance of thunderstorms in the evening. A slight chance of rain showers. Lows in the upper 30s. Chance of rain 20 percent. .THURSDAY...Mostly sunny. A slight chance of rain showers in the morning, then a chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 30 percent. $$ WYZ003-221000- Cody Foothills- Including the cities of Clark, Cody, and Meeteetse 902 PM MDT Thu May 21 2026 .TONIGHT...Mostly clear. Lows in the lower 30s. West winds around 10 mph after midnight. .FRIDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 50s. West winds around 10 mph, becoming northeast in the afternoon. .FRIDAY NIGHT...Partly cloudy. Lows around 40. South winds around 10 mph, becoming southwest after midnight. .SATURDAY...Mostly sunny. Highs in the upper 60s. West winds 10 to 15 mph. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .SUNDAY...Partly cloudy and breezy. Highs in the mid 70s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 50s. .MEMORIAL DAY...Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 30 percent. .MONDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 50s. .TUESDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers and thunderstorms in the afternoon. Breezy with highs in the upper 70s. Chance of rain 30 percent. .TUESDAY NIGHT...Partly cloudy. Showers likely with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Breezy with lows around 50. Chance of rain 60 percent. .WEDNESDAY...Partly cloudy in the morning, then clearing. A chance of showers. A chance of thunderstorms in the afternoon. Breezy with highs around 70. Chance of rain 50 percent. .WEDNESDAY NIGHT...Partly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then mostly clear after midnight. Lows in the upper 40s. Chance of rain 30 percent. .THURSDAY...Mostly sunny. A chance of showers and thunderstorms in the afternoon. Breezy with highs in the lower 70s. Chance of rain 30 percent. $$ WYZ004-221000- North Bighorn Basin- Including the cities of Basin, Greybull, Lovell, Powell, and Shell 902 PM MDT Thu May 21 2026 .TONIGHT...Mostly clear. Lows in the mid 30s. Northwest winds around 10 mph late this evening. .FRIDAY...Mostly sunny. Highs in the lower 60s. North winds around 10 mph in the afternoon. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. East winds around 10 mph in the evening. .SATURDAY...Mostly sunny. Highs in the lower 70s. Southeast winds around 10 mph in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. Southeast winds around 10 mph. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the lower 80s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows around 50. .MEMORIAL DAY...Mostly sunny. Highs in the mid 80s. .MONDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 50s. .TUESDAY...Mostly sunny in the morning, then becoming partly cloudy. A slight chance of. Breezy with highs in the mid 80s. .TUESDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Breezy with lows around 50. Chance of rain 40 percent. .WEDNESDAY...Partly cloudy in the morning, then clearing. A chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 30 percent. .WEDNESDAY NIGHT...Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows around 50. Chance of rain 20 percent. .THURSDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs around 80. Chance of rain 20 percent. $$ WYZ006-221000- Southeast Bighorn Basin- Including the cities of Ten Sleep and Worland 902 PM MDT Thu May 21 2026 .TONIGHT...Partly cloudy with scattered rain showers late this evening, then mostly clear after midnight. Lows in the mid 30s. West winds around 10 mph late this evening. Chance of rain 30 percent. .FRIDAY...Mostly sunny. Highs in the lower 60s. North winds around 10 mph in the afternoon. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows around 40. Southeast winds around 10 mph. .SATURDAY...Mostly sunny. Highs in the lower 70s. North winds around 10 mph in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. East winds around 10 mph, becoming southeast after midnight. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs around 80. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows around 50. .MEMORIAL DAY...Sunny. Highs in the mid 80s. .MONDAY NIGHT...Mostly clear. Lows in the lower 50s. .TUESDAY...Mostly sunny. A slight chance of. Breezy with highs in the lower 80s. .TUESDAY NIGHT...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Breezy with lows around 50. Chance of rain 30 percent. .WEDNESDAY...Partly cloudy in the morning, then clearing. A chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 30 percent. .WEDNESDAY NIGHT...Mostly clear with a chance of showers with a slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows around 50. Chance of rain 30 percent. .THURSDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs around 80. Chance of rain 20 percent. $$ WYZ005-221000- Southwest Bighorn Basin- Including the city of Thermopolis 902 PM MDT Thu May 21 2026 .TONIGHT...Mostly clear. Lows in the mid 30s. West winds around 10 mph late this evening. .FRIDAY...Mostly sunny. Highs around 60. East winds around 10 mph in the afternoon. .FRIDAY NIGHT...Partly cloudy. Lows around 40. Southeast winds around 10 mph in the evening. .SATURDAY...Mostly sunny. Highs in the lower 70s. Northeast winds around 10 mph in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. Southeast winds around 10 mph, becoming southwest after midnight. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. A slight chance of. Highs in the upper 70s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows around 50. .MEMORIAL DAY...Mostly sunny. A slight chance of. Highs in the lower 80s. .MONDAY NIGHT...Mostly clear. Lows in the lower 50s. .TUESDAY...Partly cloudy. A slight chance of. Breezy with highs in the lower 80s. .TUESDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Breezy with lows in the upper 40s. Chance of rain 40 percent. .WEDNESDAY...Partly cloudy with a slight chance of showers in the morning, then mostly sunny with a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 30 percent. .WEDNESDAY NIGHT...Mostly clear with a chance of showers with a slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows around 50. Chance of rain 30 percent. .THURSDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 20 percent. $$ WYZ023-221000- Star Valley- Including the cities of Afton, Alpine, Star Valley Ranch, and Thayne 902 PM MDT Thu May 21 2026 .TONIGHT...Mostly clear. Lows in the upper 20s. .FRIDAY...Partly cloudy in the morning, then becoming mostly cloudy. Highs around 60. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 30s. .SATURDAY...Mostly sunny. Highs around 70. West winds around 10 mph in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows in the upper 30s. Southwest winds around 10 mph with gusts up to 20 mph in the evening. .SUNDAY...Mostly sunny in the morning, then partly cloudy with a chance of rain showers and thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 40 percent. .SUNDAY NIGHT...Partly cloudy. Lows around 40. .MEMORIAL DAY...Mostly sunny in the morning, then becoming partly cloudy. A slight chance of. Highs around 80. .MONDAY NIGHT...Partly cloudy. Lows in the lower 40s. .TUESDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs around 70. Chance of rain 30 percent. .TUESDAY NIGHT...Partly cloudy. A chance of rain showers with a slight chance of thunderstorms in the evening. Lows in the upper 30s. Chance of rain 30 percent. .WEDNESDAY...Partly cloudy in the morning, then mostly sunny with a chance of rain showers and thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 30 percent. .WEDNESDAY NIGHT...Partly cloudy in the evening, then clearing. A slight chance of thunderstorms in the evening. A slight chance of rain showers. Lows in the mid 30s. Chance of rain 20 percent. .THURSDAY...Mostly sunny. A slight chance of rain showers in the morning, then a chance of rain showers and thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 30 percent. $$ WYZ025-221000- Upper Green River Basin Foothills- Including the city of Pinedale 902 PM MDT Thu May 21 2026 .TONIGHT...Mostly clear. Lows in the mid 20s. .FRIDAY...Partly cloudy. Highs in the mid 50s. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows around 30. .SATURDAY...Mostly sunny. Highs in the mid 60s. West winds 10 to 15 mph with gusts up to 25 mph in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows in the mid 30s. West winds 10 to 15 mph with gusts up to 25 mph in the evening. .SUNDAY...Mostly sunny in the morning, then partly cloudy with a slight chance of rain showers and thunderstorms in the afternoon. Highs around 70. Chance of rain 20 percent. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 30s. .MEMORIAL DAY...Mostly sunny. A chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 30 percent. .MONDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the upper 30s. .TUESDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Breezy with highs around 70. Chance of rain 30 percent. .TUESDAY NIGHT...Mostly cloudy with a chance of rain showers with a slight chance of thunderstorms in the evening, then partly cloudy with a slight chance of rain showers after midnight. Lows in the mid 30s. Chance of rain 30 percent. .WEDNESDAY...Partly cloudy in the morning, then mostly sunny with a chance of rain showers and thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 30 percent. .WEDNESDAY NIGHT...Partly cloudy with a slight chance of rain showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the lower 30s. Chance of rain 20 percent. .THURSDAY...Mostly sunny with a slight chance of rain showers. A slight chance of thunderstorms in the afternoon. Breezy with highs in the mid 60s. Chance of rain 20 percent. $$ WYZ026-221000- Upper Green River Basin- Including the cities of La Barge, Big Piney, and Farson 902 PM MDT Thu May 21 2026 .TONIGHT...Partly cloudy late this evening, then clearing. Lows in the upper 20s. Northeast winds around 10 mph late this evening. .FRIDAY...Partly cloudy in the morning, then becoming mostly cloudy. Highs in the upper 50s. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows around 30. Northwest winds around 10 mph in the evening. .SATURDAY...Mostly sunny and breezy. Highs around 70. West winds around 10 mph, increasing to 15 to 20 mph in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows in the mid 30s. West winds 10 to 15 mph with gusts up to 30 mph in the evening. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. A slight chance of. Breezy with highs in the lower 70s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the upper 30s. .MEMORIAL DAY...Mostly sunny. A slight chance of. Highs in the mid 70s. .MONDAY NIGHT...Partly cloudy. Lows around 40. .TUESDAY...Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Breezy with highs around 70. Chance of rain 20 percent. .TUESDAY NIGHT...Partly cloudy. A chance of rain showers with a slight chance of thunderstorms in the evening. Lows in the mid 30s. Chance of rain 30 percent. .WEDNESDAY...Partly cloudy in the morning, then mostly sunny with a slight chance of rain showers and thunderstorms in the afternoon. Breezy with highs in the upper 60s. Chance of rain 20 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 30s. .THURSDAY...Sunny, breezy with highs in the mid 60s. $$ WYZ010-221000- Northeast Johnson County- Including the city of Buffalo 902 PM MDT Thu May 21 2026 .TONIGHT...Cloudy with numerous rain showers late this evening, then partly cloudy with scattered rain showers after midnight. Lows in the mid 30s. Northwest winds 10 to 15 mph. Chance of rain 60 percent. .FRIDAY...Mostly sunny. Highs around 60. Northwest winds 10 to 15 mph. .FRIDAY NIGHT...Partly cloudy. Lows around 40. Northwest winds around 10 mph in the evening. .SATURDAY...Mostly sunny. Highs around 70. South winds around 10 mph in the morning. .SATURDAY NIGHT...Mostly clear. Lows in the lower 40s. Southwest winds around 10 mph after midnight. .SUNDAY...Mostly sunny. Highs around 80. .SUNDAY NIGHT...Mostly clear. Lows around 50. .MEMORIAL DAY...Mostly sunny. Highs in the mid 80s. .MONDAY NIGHT...Mostly clear. Lows in the lower 50s. .TUESDAY...Partly cloudy. A slight chance of. Breezy with highs in the mid 80s. .TUESDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Breezy with lows around 50. Chance of rain 40 percent. .WEDNESDAY...Partly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Breezy with highs in the mid 70s. Chance of rain 40 percent. .WEDNESDAY NIGHT...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Breezy with lows in the upper 40s. Chance of rain 30 percent. .THURSDAY...Partly cloudy in the morning, then mostly sunny with a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 30 percent. $$ WYZ011-221000- Southeast Johnson County- Including the city of Kaycee 902 PM MDT Thu May 21 2026 .TONIGHT...Cloudy with numerous rain showers late this evening, then partly cloudy with scattered rain showers after midnight. Lows in the mid 30s. Northwest winds 10 to 15 mph, becoming west after midnight. Chance of rain 60 percent. .FRIDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the lower 60s. Northwest winds around 10 mph. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the upper 30s. Northwest winds around 10 mph in the evening. .SATURDAY...Mostly sunny. Highs in the lower 70s. Southwest winds around 10 mph, becoming west in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows in the lower 40s. Southwest winds around 10 mph. .SUNDAY...Mostly sunny. Highs around 80. .SUNDAY NIGHT...Mostly clear. Lows around 50. .MEMORIAL DAY...Mostly sunny. Highs in the mid 80s. .MONDAY NIGHT...Mostly clear. Lows around 50. .TUESDAY...Partly cloudy. A slight chance of. Breezy with highs in the lower 80s. .TUESDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then partly cloudy with a slight chance of showers after midnight. Breezy with lows around 50. Chance of rain 40 percent. .WEDNESDAY...Partly cloudy. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Breezy with highs in the lower 70s. Chance of rain 40 percent. .WEDNESDAY NIGHT...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Lows in the mid 40s. Chance of rain 30 percent. .THURSDAY...Partly cloudy in the morning, then mostly sunny with a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 30 percent. $$ WYZ027-221000- South Lincoln County- Including the cities of Kemmerer and Cokeville 902 PM MDT Thu May 21 2026 .TONIGHT...Mostly clear. Lows in the upper 20s. North winds around 10 mph late this evening. .FRIDAY...Partly cloudy in the morning, then becoming mostly cloudy. Highs around 60. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 30s. Northwest winds around 10 mph in the evening. .SATURDAY...Mostly sunny and breezy. Highs around 70. Southwest winds around 10 mph, becoming west 15 to 20 mph in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows in the upper 30s. West winds 10 to 15 mph with gusts up to 25 mph in the evening. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Breezy with highs in the lower 70s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows around 40. .MEMORIAL DAY...Mostly sunny. A slight chance of. Highs in the mid 70s. .MONDAY NIGHT...Partly cloudy. Lows around 40. .TUESDAY...Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Breezy with highs around 70. Chance of rain 20 percent. .TUESDAY NIGHT...Partly cloudy. Lows in the upper 30s. .WEDNESDAY...Mostly sunny. A slight chance of rain showers and thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 20 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 30s. .THURSDAY...Sunny. A slight chance of. Highs in the mid 60s. $$ WYZ016-221000- Upper Wind River Basin- Including the city of Dubois 902 PM MDT Thu May 21 2026 .TONIGHT...Mostly clear. Lows around 30. .FRIDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the mid 50s. West winds around 10 mph in the afternoon. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 30s. West winds around 10 mph. .SATURDAY...Mostly sunny and breezy. Highs in the mid 60s. West winds 15 to 20 mph with gusts up to 30 mph. .SATURDAY NIGHT...Mostly clear and breezy. Lows around 40. West winds 15 to 20 mph. .SUNDAY...Partly cloudy. A chance of rain showers and thunderstorms in the afternoon. Breezy with highs around 70. Chance of rain 30 percent. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 40s. .MEMORIAL DAY...Mostly sunny. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 30 percent. .MONDAY NIGHT...Mostly clear. Lows in the mid 40s. .TUESDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Breezy with highs in the lower 70s. Chance of rain 30 percent. .TUESDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the lower 40s. Chance of rain 40 percent. .WEDNESDAY...Partly cloudy with a slight chance of showers in the morning, then mostly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 30 percent. .WEDNESDAY NIGHT...Mostly clear. A chance of rain showers with a slight chance of thunderstorms in the evening, then a slight chance of rain showers after midnight. Lows around 40. Chance of rain 30 percent. .THURSDAY...Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 20 percent. $$ WYZ001-221000- Yellowstone National Park- Including the cities of Lake, Mammoth, and Old Faithful 902 PM MDT Thu May 21 2026 .TONIGHT...Mostly clear. Lows in the lower 20s. .FRIDAY...Partly cloudy. Highs around 50. West winds around 10 mph in the afternoon. .FRIDAY NIGHT...Partly cloudy. Lows around 30. Southwest winds around 10 mph in the evening. .SATURDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 50s. Southwest winds 10 to 15 mph. .SATURDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 30s. South winds 10 to 15 mph. Gusts up to 30 mph in the evening. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. A slight chance of. Highs in the lower 60s. .SUNDAY NIGHT...Partly cloudy. Lows in the upper 30s. .MEMORIAL DAY...Mostly sunny. A slight chance of. Highs in the mid 60s. .MONDAY NIGHT...Partly cloudy. Lows in the upper 30s. .TUESDAY...Mostly sunny in the morning, then partly cloudy with a chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 40 percent. .TUESDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a chance of rain showers. Lows in the mid 30s. Chance of rain 40 percent. .WEDNESDAY...Partly cloudy. A slight chance of rain showers in the morning, then a chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Chance of rain 40 percent. .WEDNESDAY NIGHT...Partly cloudy in the evening, then clearing. A slight chance of thunderstorms in the evening. A slight chance of rain showers. Lows in the mid 30s. Chance of rain 20 percent. .THURSDAY...Mostly sunny. A slight chance of rain showers in the morning, then a chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Chance of rain 30 percent. $$ WYZ029-221000- Flaming Gorge- 902 PM MDT Thu May 21 2026 .TONIGHT...Partly cloudy. Lows around 30. Northeast winds 10 to 15 mph with gusts up to 25 mph, becoming southeast after midnight. .FRIDAY...Partly cloudy in the morning, then becoming mostly cloudy. Highs in the upper 50s. West winds around 10 mph in the afternoon. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows around 40. South winds around 10 mph. .SATURDAY...Mostly sunny and breezy. Highs in the upper 60s. Southwest winds around 10 mph, becoming west 15 to 20 mph in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows in the lower 40s. West winds 10 to 15 mph with gusts up to 25 mph in the evening. .SUNDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 30 percent. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 40s. .MEMORIAL DAY...Mostly sunny. Highs in the mid 70s. .MONDAY NIGHT...Partly cloudy. Lows around 50. .TUESDAY...Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Breezy with highs around 70. Chance of rain 20 percent. .TUESDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Breezy with lows in the mid 40s. Chance of rain 20 percent. .WEDNESDAY...Partly cloudy in the morning, then clearing. A slight chance of. Breezy with highs in the upper 60s. .WEDNESDAY NIGHT...Mostly clear and breezy. Lows in the lower 40s. .THURSDAY...Sunny. A slight chance of. Breezy with highs in the upper 60s. $$ WYZ022-221000- Casper Mountain- 902 PM MDT Thu May 21 2026 .TONIGHT...Cloudy. Snow showers with isolated rain showers late this evening, then numerous snow showers after midnight. Snow accumulation up to 2 inches. Near steady temperature in the upper 20s. Northwest winds around 10 mph. Chance of precipitation 80 percent. .FRIDAY...Partly cloudy in the morning, then clearing. Highs in the upper 40s. West winds 10 to 15 mph. .FRIDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 30s. Southwest winds around 10 mph, becoming south after midnight. .SATURDAY...Mostly sunny. Highs around 60. Southwest winds 10 to 15 mph, becoming west in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows around 40. South winds around 10 mph. Gusts up to 25 mph in the evening. .SUNDAY...Mostly sunny and breezy. Highs in the upper 60s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 40s. .MEMORIAL DAY...Mostly sunny. Highs in the lower 70s. .MONDAY NIGHT...Partly cloudy. Lows in the upper 40s. .TUESDAY...Partly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 40 percent. .TUESDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 40s. Chance of rain 30 percent. .WEDNESDAY...Partly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 30 percent. .WEDNESDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the mid 40s. Chance of rain 20 percent. .THURSDAY...Partly cloudy in the morning, then mostly sunny with a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 30 percent. $$ WYZ002-221000- Absaroka Mountains- 902 PM MDT Thu May 21 2026 .TONIGHT...Mostly clear. Lows in the lower 20s. Northwest winds around 10 mph. .FRIDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the mid 40s. West winds around 10 mph. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 20s. West winds 10 to 15 mph. .SATURDAY...Mostly sunny and breezy. Highs in the lower 50s. West winds 15 to 20 mph with gusts up to 30 mph. .SATURDAY NIGHT...Mostly clear and breezy. Lows in the mid 30s. West winds 15 to 20 mph with gusts up to 30 mph. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. A slight chance of. Breezy with highs in the upper 50s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the upper 30s. .MEMORIAL DAY...Mostly sunny. A chance of rain showers and thunderstorms in the afternoon. Breezy with highs in the lower 60s. Chance of rain 30 percent. .MONDAY NIGHT...Partly cloudy in the evening, then clearing. Lows around 40. .TUESDAY...Mostly sunny in the morning, then partly cloudy with a chance of rain showers and thunderstorms in the afternoon. Breezy with highs in the upper 50s. Chance of rain 40 percent. .TUESDAY NIGHT...Partly cloudy. Rain showers likely with a slight chance of thunderstorms in the evening, then a chance of rain and snow showers after midnight. Little or no snow accumulation. Lows in the upper 30s. Chance of precipitation 60 percent. .WEDNESDAY...Partly cloudy in the morning, then clearing. A chance of rain and snow showers. A chance of thunderstorms in the afternoon. Little or no snow accumulation. Highs in the mid 50s. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly clear. A chance of rain showers, snow showers with a slight chance of thunderstorms in the evening. Lows in the mid 30s. Chance of precipitation 30 percent. .THURSDAY...Mostly sunny. A slight chance of rain and snow showers in the morning, then a chance of rain showers, thunderstorms and snow showers in the afternoon. Breezy with highs in the mid 50s. Chance of precipitation 30 percent. $$ WYZ007-221000- Owl Creek and Bridger Mountains- 902 PM MDT Thu May 21 2026 .TONIGHT...Partly cloudy with scattered snow showers late this evening, then mostly clear after midnight. Lows in the lower 30s. Northwest winds around 10 mph. Chance of snow 30 percent. .FRIDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the mid 50s. West winds around 10 mph, becoming northeast in the afternoon. .FRIDAY NIGHT...Partly cloudy. Lows around 40. Southeast winds around 10 mph, becoming southwest after midnight. .SATURDAY...Mostly sunny. Highs in the mid 60s. Southwest winds around 10 mph, becoming west in the afternoon. .SATURDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 40s. Southwest winds 10 to 15 mph. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. A slight chance of. Highs in the lower 70s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows around 50. .MEMORIAL DAY...Mostly sunny. A slight chance of. Highs in the mid 70s. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s. .TUESDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Breezy with highs in the mid 70s. Chance of rain 30 percent. .TUESDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Breezy with lows in the upper 40s. Chance of rain 40 percent. .WEDNESDAY...Partly cloudy in the morning, then clearing. A chance of showers. A slight chance of thunderstorms in the afternoon. Breezy with highs in the upper 60s. Chance of rain 30 percent. .WEDNESDAY NIGHT...Mostly clear. A chance of showers with a slight chance of thunderstorms in the evening. Breezy with lows in the upper 40s. Chance of rain 30 percent. .THURSDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 20 percent. $$ WYZ008-221000- Bighorn Mountains West- 902 PM MDT Thu May 21 2026 .TONIGHT...Partly cloudy with scattered snow showers. Lows in the mid 20s. North winds around 10 mph. Chance of snow 30 percent. .FRIDAY...Partly cloudy. Highs in the upper 40s. West winds around 10 mph. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 30s. Southwest winds around 10 mph, becoming southeast after midnight. .SATURDAY...Mostly sunny. Highs in the upper 50s. West winds 10 to 15 mph. .SATURDAY NIGHT...Mostly clear. Lows in the lower 40s. South winds around 10 mph with gusts up to 25 mph. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the mid 60s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the upper 40s. .MEMORIAL DAY...Mostly sunny. Highs in the lower 70s. .MONDAY NIGHT...Mostly clear and breezy. Lows around 50. .TUESDAY...Partly cloudy. A slight chance of rain showers and thunderstorms in the afternoon. Breezy with highs around 70. Chance of rain 20 percent. .TUESDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a chance of rain showers. Breezy with lows in the mid 40s. Chance of rain 40 percent. .WEDNESDAY...Partly cloudy in the morning, then clearing. A chance of rain showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 40 percent. .WEDNESDAY NIGHT...Partly cloudy. A chance of rain showers with a slight chance of thunderstorms in the evening. Lows in the mid 40s. Chance of rain 30 percent. .THURSDAY...Mostly sunny. A slight chance of rain showers in the morning, then a chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 30 percent. $$ WYZ009-221000- Bighorn Mountains Southeast- 902 PM MDT Thu May 21 2026 .TONIGHT...Cloudy with numerous snow and rain showers late this evening, then partly cloudy with scattered snow showers after midnight. Snow accumulation up to 1 inch. Lows in the upper 20s. Northwest winds around 10 mph with gusts up to 20 mph. Chance of precipitation 60 percent. .FRIDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 40s. Northwest winds 10 to 15 mph with gusts up to 25 mph. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 30s. West winds around 10 mph. .SATURDAY...Partly cloudy in the morning, then clearing. Highs in the upper 50s. West winds 10 to 15 mph with gusts up to 25 mph. .SATURDAY NIGHT...Mostly clear. Lows in the lower 40s. West winds 10 to 15 mph with gusts up to 30 mph. .SUNDAY...Mostly sunny and breezy. Highs in the upper 60s. .SUNDAY NIGHT...Mostly clear. Lows in the upper 40s. .MEMORIAL DAY...Mostly sunny. A slight chance of. Highs in the lower 70s. .MONDAY NIGHT...Mostly clear. Lows in the upper 40s. .TUESDAY...Partly cloudy. A chance of rain showers with a slight chance of thunderstorms in the afternoon. Breezy with highs around 70. Chance of rain 30 percent. .TUESDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a chance of rain showers. Breezy with lows in the mid 40s. Chance of rain 40 percent. .WEDNESDAY...Partly cloudy with a chance of rain showers in the morning, then mostly sunny with rain showers likely with a slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 60 percent. .WEDNESDAY NIGHT...Partly cloudy. A chance of rain showers with a slight chance of thunderstorms in the evening. Lows in the mid 40s. Chance of rain 30 percent. .THURSDAY...Mostly sunny. A chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 40 percent. $$ WYZ012-221000- Teton and Gros Ventre Mountains- 902 PM MDT Thu May 21 2026 .TONIGHT...Mostly clear. Lows in the lower 20s. North winds around 10 mph late this evening. .FRIDAY...Partly cloudy. Highs in the upper 40s. West winds around 10 mph in the afternoon. .FRIDAY NIGHT...Partly cloudy. Lows around 30. Southwest winds around 10 mph, becoming southeast after midnight. .SATURDAY...Mostly sunny. Highs in the mid 50s. South winds 10 to 15 mph, becoming west in the afternoon. Gusts up to 30 mph. .SATURDAY NIGHT...Mostly clear. Lows in the mid 30s. Southwest winds 10 to 15 mph with gusts up to 30 mph, becoming south with gusts up to 20 mph after midnight. .SUNDAY...Partly cloudy. A chance of rain showers and thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 30 percent. .SUNDAY NIGHT...Partly cloudy. Lows in the upper 30s. .MEMORIAL DAY...Mostly sunny in the morning, then partly cloudy with a chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 30 percent. .MONDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the upper 30s. .TUESDAY...Mostly sunny in the morning, then partly cloudy with a chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs around 60. Chance of rain 40 percent. .TUESDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a chance of rain showers. Lows in the mid 30s. Chance of rain 40 percent. .WEDNESDAY...Partly cloudy with a slight chance of rain showers in the morning, then mostly sunny with a chance of rain showers and thunderstorms in the afternoon. Highs in the mid 50s. Chance of rain 40 percent. .WEDNESDAY NIGHT...Partly cloudy in the evening, then clearing. A slight chance of thunderstorms in the evening. A slight chance of rain showers. Lows in the mid 30s. Chance of rain 20 percent. .THURSDAY...Mostly sunny. A slight chance of rain and snow showers in the morning, then a chance of rain showers and thunderstorms in the afternoon. Highs in the mid 50s. Chance of precipitation 30 percent. $$ WYZ014-221000- Wind River Mountains West- 902 PM MDT Thu May 21 2026 .TONIGHT...Mostly clear. Cold with lows 16 to 24. North winds around 10 mph late this evening. .FRIDAY...Partly cloudy. Highs in the mid 40s. West winds around 10 mph. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 20s. Northwest winds around 10 mph in the evening. .SATURDAY...Mostly sunny and breezy. Highs in the mid 50s. West winds 15 to 20 mph with gusts up to 30 mph. .SATURDAY NIGHT...Mostly clear and breezy. Lows in the mid 30s. West winds 15 to 20 mph with gusts up to 30 mph, diminishing to around 10 mph with gusts up to 20 mph after midnight. .SUNDAY...Partly cloudy. A chance of rain showers and thunderstorms in the afternoon. Breezy with highs in the upper 50s. Chance of rain 40 percent. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 30s. .MEMORIAL DAY...Mostly sunny. A chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 30 percent. .MONDAY NIGHT...Partly cloudy. Lows in the upper 30s. .TUESDAY...Partly cloudy. A chance of rain showers with a slight chance of thunderstorms in the afternoon. Breezy with highs in the upper 50s. Chance of rain 40 percent. .TUESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A chance of rain showers. A slight chance of thunderstorms in the evening, then a chance of snow showers after midnight. Lows in the mid 30s. Chance of precipitation 40 percent. .WEDNESDAY...Partly cloudy in the morning, then mostly sunny with a chance of rain showers, thunderstorms and snow showers in the afternoon. Highs in the mid 50s. Chance of precipitation 30 percent. .WEDNESDAY NIGHT...Mostly clear. A slight chance of rain showers, thunderstorms and snow showers in the evening. Lows in the mid 30s. Chance of precipitation 20 percent. .THURSDAY...Mostly sunny with a slight chance of rain and snow showers. A slight chance of thunderstorms in the afternoon. Breezy with highs in the mid 50s. Chance of precipitation 20 percent. $$ WYZ015-221000- Wind River Mountains East- 902 PM MDT Thu May 21 2026 .TONIGHT...Mostly clear. Cold with lows around 20. West winds around 10 mph after midnight. .FRIDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the lower 40s. West winds around 10 mph. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 20s. West winds 10 to 15 mph. .SATURDAY...Mostly sunny and breezy. Highs in the lower 50s. West winds 15 to 20 mph with gusts up to 35 mph. .SATURDAY NIGHT...Mostly clear and breezy. Lows in the mid 30s. West winds 15 to 20 mph with gusts up to 35 mph. .SUNDAY...Partly cloudy. A chance of rain showers, thunderstorms and snow showers in the afternoon. Breezy with highs in the upper 50s. Chance of precipitation 30 percent. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the upper 30s. .MEMORIAL DAY...Mostly sunny. A chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 30 percent. .MONDAY NIGHT...Partly cloudy. Lows around 40. .TUESDAY...Partly cloudy. A chance of rain showers with a slight chance of thunderstorms in the afternoon. Breezy with highs in the upper 50s. Chance of rain 30 percent. .TUESDAY NIGHT...Partly cloudy with a chance of rain showers. A slight chance of thunderstorms in the evening, then a chance of snow showers after midnight. Lows in the upper 30s. Chance of precipitation 40 percent. .WEDNESDAY...Partly cloudy with a slight chance of rain and snow showers in the morning, then mostly sunny with a chance of rain showers, thunderstorms and snow showers in the afternoon. Highs in the mid 50s. Chance of precipitation 30 percent. .WEDNESDAY NIGHT...Mostly clear. A chance of rain showers, a slight chance of thunderstorms and snow showers in the evening. Lows in the upper 30s. Chance of precipitation 30 percent. .THURSDAY...Mostly sunny with a slight chance of rain and snow showers. A slight chance of thunderstorms in the afternoon. Breezy with highs in the mid 50s. Chance of precipitation 20 percent. $$ WYZ019-221000- Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 902 PM MDT Thu May 21 2026 .TONIGHT...Mostly cloudy late this evening, then becoming partly cloudy. Scattered snow showers with isolated rain showers late this evening. Lows in the upper 20s. North winds around 10 mph late this evening. Chance of precipitation 30 percent. .FRIDAY...Partly cloudy. Highs in the mid 50s. West winds around 10 mph. .FRIDAY NIGHT...Mostly cloudy in the evening, then clearing. Lows in the mid 30s. Southwest winds around 10 mph. .SATURDAY...Mostly sunny. Highs in the mid 60s. West winds 10 to 15 mph with gusts up to 25 mph. .SATURDAY NIGHT...Mostly clear. Lows in the upper 30s. Southwest winds 10 to 15 mph. Gusts up to 30 mph in the evening. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Breezy with highs in the lower 70s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 40s. .MEMORIAL DAY...Mostly sunny. Highs in the mid 70s. .MONDAY NIGHT...Partly cloudy. Lows in the mid 40s. .TUESDAY...Partly cloudy. A chance of showers and thunderstorms in the afternoon. Breezy with highs in the lower 70s. Chance of rain 30 percent. .TUESDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then partly cloudy with a slight chance of showers after midnight. Lows in the lower 40s. Chance of rain 30 percent. .WEDNESDAY...Partly cloudy in the morning, then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 20 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 40s. .THURSDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 20 percent. $$ WYZ024-221000- Salt River and Wyoming Ranges- 902 PM MDT Thu May 21 2026 .TONIGHT...Mostly clear. Lows in the mid 20s. North winds around 10 mph late this evening. .FRIDAY...Partly cloudy in the morning, then becoming mostly cloudy. Highs in the lower 50s. South winds around 10 mph, becoming west in the afternoon. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 30s. West winds around 10 mph in the evening. .SATURDAY...Mostly sunny and breezy. Highs in the lower 60s. West winds 15 to 20 mph with gusts up to 30 mph. .SATURDAY NIGHT...Mostly clear. Lows in the upper 30s. Southwest winds 10 to 15 mph. Gusts up to 30 mph in the evening. .SUNDAY...Mostly sunny in the morning, then partly cloudy with a chance of rain showers and thunderstorms in the afternoon. Breezy with highs in the mid 60s. Chance of rain 30 percent. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 40s. .MEMORIAL DAY...Mostly sunny. A slight chance of. Highs in the upper 60s. .MONDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 40s. .TUESDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Breezy with highs in the lower 60s. Chance of rain 30 percent. .TUESDAY NIGHT...Partly cloudy. A chance of rain showers with a slight chance of thunderstorms in the evening. Lows in the upper 30s. Chance of rain 30 percent. .WEDNESDAY...Mostly sunny. A chance of rain showers and thunderstorms in the afternoon. Breezy with highs in the upper 50s. Chance of rain 30 percent. .WEDNESDAY NIGHT...Partly cloudy in the evening, then clearing. A slight chance of thunderstorms in the evening. A slight chance of rain showers. Lows in the mid 30s. Chance of rain 20 percent. .THURSDAY...Mostly sunny. A slight chance of rain and snow showers in the morning, then a chance of rain showers with a slight chance of thunderstorms in the afternoon. Breezy with highs in the upper 50s. Chance of precipitation 30 percent. $$ WYZ030-221000- East Sweetwater County- Including the city of Wamsutter 902 PM MDT Thu May 21 2026 .TONIGHT...Partly cloudy. Lows in the upper 20s. North winds 10 to 15 mph with gusts up to 25 mph late this evening. .FRIDAY...Partly cloudy. Highs in the mid 50s. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 30s. .SATURDAY...Mostly sunny. Highs in the mid 60s. Southwest winds 10 to 15 mph. .SATURDAY NIGHT...Mostly clear. Lows around 40. Southwest winds 10 to 15 mph. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the lower 70s. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 40s. .MEMORIAL DAY...Mostly sunny. Highs in the mid 70s. .MONDAY NIGHT...Partly cloudy. Lows in the mid 40s. .TUESDAY...Partly cloudy. A slight chance of. Breezy with highs around 70. .TUESDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Breezy with lows in the lower 40s. Chance of rain 20 percent. .WEDNESDAY...Partly cloudy in the morning, then clearing. A slight chance of. Breezy with highs around 70. .WEDNESDAY NIGHT...Partly cloudy. Lows around 40. .THURSDAY...Mostly sunny. A slight chance of. Breezy with highs around 70. $$