FPUS55 KRIW 220218
ZFPRIW

Zone Forecast Product for Western and Central Wyoming
National Weather Service Riverton WY
817 PM MDT Sat Mar 21 2026

WYZ020-221000-
Natrona County Lower Elevations-
Including the city of Casper
817 PM MDT Sat Mar 21 2026

.TONIGHT...Mostly cloudy early this evening, then becoming partly
cloudy. Breezy with lows in the upper 30s. North winds 15 to
25 mph with gusts up to 35 mph, becoming northeast 10 to 15 mph
with gusts up to 25 mph after midnight.
.SUNDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Cooler with highs in the lower 60s. Northwest winds
around 10 mph in the afternoon.
.SUNDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the mid 30s. Northeast winds around 10 mph
with gusts up to 20 mph.
.MONDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Highs in the upper 60s. West winds 10 to 15 mph in the
afternoon.
.MONDAY NIGHT...Partly cloudy. Lows around 40. Northwest winds
around 10 mph with gusts up to 25 mph, becoming southwest after
midnight.
.TUESDAY...Mostly cloudy and breezy. Highs in the lower 70s.
.TUESDAY NIGHT...Mostly cloudy in the evening, then clearing.
Breezy with lows around 50.
.WEDNESDAY...Partly cloudy and windy. Highs in the upper 70s.
.WEDNESDAY NIGHT...Partly cloudy and breezy. Lows in the mid 30s.
.THURSDAY...Partly cloudy and breezy. Highs in the lower 60s.
.THURSDAY NIGHT...Partly cloudy and breezy. Lows around 30.
.FRIDAY...Partly cloudy. Highs around 60.
.FRIDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the lower 30s.
.SATURDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Highs in the lower 60s.

$$

WYZ017-221000-
Wind River Basin-
Including the cities of Riverton and Shoshoni
817 PM MDT Sat Mar 21 2026

.TONIGHT...Partly cloudy early this evening, then clearing.
Breezy with lows around 40. Northwest winds 15 to 20 mph with
gusts up to 35 mph, becoming northeast 10 to 15 mph with gusts up
to 25 mph after midnight.
.SUNDAY...Partly cloudy. Highs in the lower 60s. Northeast winds
around 10 mph, becoming northwest in the afternoon.
.SUNDAY NIGHT...Mostly cloudy. Lows in the upper 30s. North winds
around 10 mph, becoming northeast after midnight.
.MONDAY...Partly cloudy. Highs in the upper 60s. West winds 10 to
15 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows around 40. West winds around
10 mph. Gusts up to 25 mph in the evening.
.TUESDAY...Partly cloudy and breezy. Highs in the lower 70s.
.TUESDAY NIGHT...Partly cloudy in the evening, then clearing.
Breezy with lows in the mid 40s.
.WEDNESDAY...Mostly sunny and breezy. Highs in the upper 70s.
.WEDNESDAY NIGHT...Partly cloudy and breezy. Lows in the upper
30s.
.THURSDAY...Mostly sunny and breezy. Highs in the lower 60s.
.THURSDAY NIGHT...Partly cloudy and breezy. Lows in the lower
30s.
.FRIDAY...Partly cloudy. Highs around 60.
.FRIDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the lower 30s.
.SATURDAY...Partly cloudy. Highs in the mid 60s.

$$

WYZ018-221000-
Lander Foothills-
Including the city of Lander
817 PM MDT Sat Mar 21 2026

.TONIGHT...Partly cloudy early this evening, then clearing.
Breezy with lows around 40. North winds 15 to 20 mph with gusts
up to 30 mph, diminishing to around 10 mph after midnight.
.SUNDAY...Partly cloudy. Highs in the mid 60s. Northeast winds
around 10 mph in the afternoon.
.SUNDAY NIGHT...Mostly cloudy. Lows in the upper 30s. Northwest
winds around 10 mph in the evening.
.MONDAY...Partly cloudy. Highs in the upper 60s. Northwest winds
around 10 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 40s. West winds
around 10 mph.
.TUESDAY...Partly cloudy and breezy. Highs in the lower 70s.
.TUESDAY NIGHT...Partly cloudy in the evening, then clearing.
Lows in the mid 40s.
.WEDNESDAY...Mostly sunny and breezy. Highs in the mid 70s.
.WEDNESDAY NIGHT...Partly cloudy and breezy. Lows in the lower
40s.
.THURSDAY...Mostly sunny. Highs in the mid 60s.
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 30s.
.FRIDAY...Partly cloudy. Highs in the lower 60s.
.FRIDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the lower 30s.
.SATURDAY...Partly cloudy. Highs in the mid 60s.

$$

WYZ028-221000-
Rock Springs and Green River-
Including the cities of Rock Springs and Green River
817 PM MDT Sat Mar 21 2026

.TONIGHT...Partly cloudy early this evening, then clearing. Lows
around 40. Northwest winds 10 to 15 mph.
.SUNDAY...Mostly sunny in the morning, then becoming partly
cloudy. Highs in the mid 60s. West winds 10 to 15 mph.
.SUNDAY NIGHT...Mostly cloudy. Lows in the upper 30s. Northwest
winds 10 to 15 mph in the evening.
.MONDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Breezy with highs around 70. West winds 15 to 20 mph with
gusts up to 30 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy and breezy. Lows around 40. West
winds 15 to 20 mph with gusts up to 30 mph in the evening.
.TUESDAY...Partly cloudy and breezy. Highs around 70.
.TUESDAY NIGHT...Mostly clear and breezy. Lows in the lower 40s.
.WEDNESDAY...Mostly sunny and breezy. Highs in the mid 70s.
.WEDNESDAY NIGHT...Mostly clear in the evening, then becoming
partly cloudy. Breezy with lows around 40.
.THURSDAY...Mostly sunny and breezy. Highs in the mid 60s.
.THURSDAY NIGHT...Partly cloudy and breezy. Lows in the lower
30s.
.FRIDAY...Partly cloudy. Highs in the lower 60s.
.FRIDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the mid 30s.
.SATURDAY...Partly cloudy. Highs in the mid 60s.

$$

WYZ013-221000-
Jackson Hole-
Including the city of Jackson
817 PM MDT Sat Mar 21 2026

.TONIGHT...Partly cloudy. Lows in the lower 30s. Southwest winds
10 to 15 mph.
.SUNDAY...Mostly sunny. Highs in the lower 50s.
.SUNDAY NIGHT...Partly cloudy. Lows around 30. West winds around
10 mph in the evening.
.MONDAY...Partly cloudy. Highs in the upper 50s. Southwest winds
around 10 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 30s. Southwest
winds around 10 mph.
.TUESDAY...Mostly cloudy. A slight chance of rain showers in the
afternoon. Highs in the upper 50s. Chance of rain 20 percent.
.TUESDAY NIGHT...Partly cloudy. A slight chance of showers in the
evening. Lows around 40. Chance of rain 20 percent.
.WEDNESDAY...Mostly sunny and breezy. Highs around 60.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 30s.
.THURSDAY...Partly cloudy. Highs in the lower 50s.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 20s.
.FRIDAY...Partly cloudy. Highs in the mid 50s.
.FRIDAY NIGHT...Partly cloudy. Lows around 30.
.SATURDAY...Partly cloudy. Highs in the upper 50s.

$$

WYZ003-221000-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
817 PM MDT Sat Mar 21 2026

.TONIGHT...Partly cloudy and windy. Lows in the upper 30s. North
winds 20 to 30 mph with gusts up to 45 mph, diminishing to 10 to
15 mph with gusts up to 30 mph after midnight.
.SUNDAY...Partly cloudy in the morning, then clearing. Highs
around 60. Northeast winds 10 to 15 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 30s. Northwest
winds 10 to 15 mph in the evening.
.MONDAY...Partly cloudy. Highs in the lower 60s. Southwest winds
around 10 mph, becoming northeast in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 40s. West winds
10 to 15 mph. Gusts up to 30 mph in the evening.
.TUESDAY...Partly cloudy in the morning, then becoming mostly
cloudy. Breezy with highs in the upper 60s.
.TUESDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. Breezy with lows in the upper 40s.
.WEDNESDAY...Partly cloudy and windy. Highs in the lower 70s.
.WEDNESDAY NIGHT...Partly cloudy and breezy. Lows in the upper
30s.
.THURSDAY...Partly cloudy and breezy. Highs in the mid 50s.
.THURSDAY NIGHT...Partly cloudy and breezy. Lows around 30.
.FRIDAY...Mostly sunny in the morning, then becoming partly
cloudy. Highs in the mid 50s.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 30s.
.SATURDAY...Partly cloudy. Highs around 60.

$$

WYZ004-221000-
North Bighorn Basin-
Including the cities of Basin, Greybull, Lovell, Powell,
and Shell
817 PM MDT Sat Mar 21 2026

.TONIGHT...Partly cloudy. Scattered showers after midnight. Windy
with lows in the upper 30s. Northwest winds 20 to 30 mph with
gusts up to 45 mph, diminishing to 15 to 20 mph with gusts up to
30 mph after midnight. Chance of rain 30 percent.
.SUNDAY...Mostly sunny. Cooler with highs around 60. Northwest
winds around 10 mph with gusts up to 20 mph, becoming northeast
in the afternoon.
.SUNDAY NIGHT...Partly cloudy. Lows around 40. Northeast winds
around 10 mph in the evening.
.MONDAY...Partly cloudy. Highs in the upper 60s. Southeast winds
around 10 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows around 40. Southeast winds
around 10 mph with gusts up to 20 mph in the evening.
.TUESDAY...Mostly cloudy. Highs around 70.
.TUESDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. Lows in the mid 40s.
.WEDNESDAY...Partly cloudy and breezy. Highs in the mid 70s.
.WEDNESDAY NIGHT...Partly cloudy and breezy. Lows in the upper
30s.
.THURSDAY...Partly cloudy and breezy, cooler with highs around
60.
.THURSDAY NIGHT...Partly cloudy and breezy. Lows around 30.
.FRIDAY...Partly cloudy. Highs around 60.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 30s.
.SATURDAY...Partly cloudy. Highs in the mid 60s.

$$

WYZ006-221000-
Southeast Bighorn Basin-
Including the cities of Ten Sleep and Worland
817 PM MDT Sat Mar 21 2026

.TONIGHT...Partly cloudy. Scattered showers after midnight.
Breezy with lows around 40. Northwest winds 15 to 20 mph. Gusts
up to 35 mph early this evening. Chance of rain 30 percent.
.SUNDAY...Partly cloudy in the morning, then clearing. Cooler
with highs around 60. Northwest winds around 10 mph, becoming
north in the afternoon.
.SUNDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the upper 30s. Northeast winds around
10 mph in the evening.
.MONDAY...Partly cloudy. Highs around 70. North winds around
10 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows around 40. East winds around
10 mph in the evening.
.TUESDAY...Partly cloudy in the morning, then becoming mostly
cloudy. Highs in the lower 70s.
.TUESDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. Lows in the mid 40s.
.WEDNESDAY...Partly cloudy and breezy. Highs around 80.
.WEDNESDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. Breezy with lows in the upper 30s.
.THURSDAY...Partly cloudy and breezy. Highs in the lower 60s.
.THURSDAY NIGHT...Partly cloudy. Lows around 30.
.FRIDAY...Partly cloudy. Highs around 60.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 30s.
.SATURDAY...Partly cloudy. Highs in the mid 60s.

$$

WYZ005-221000-
Southwest Bighorn Basin-
Including the city of Thermopolis
817 PM MDT Sat Mar 21 2026

.TONIGHT...Partly cloudy and breezy. Lows around 40. Northwest
winds 15 to 20 mph.
.SUNDAY...Partly cloudy in the morning, then clearing. Cooler
with highs around 60. North winds around 10 mph, becoming east in
the afternoon.
.SUNDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the upper 30s. Northeast winds around
10 mph in the evening.
.MONDAY...Partly cloudy. Highs around 70. East winds around
10 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows around 40. Southeast winds
around 10 mph in the evening.
.TUESDAY...Partly cloudy and breezy. Highs in the lower 70s.
.TUESDAY NIGHT...Partly cloudy. Lows in the mid 40s.
.WEDNESDAY...Partly cloudy and breezy. Highs in the upper 70s.
.WEDNESDAY NIGHT...Partly cloudy and breezy. Lows in the upper
30s.
.THURSDAY...Partly cloudy and breezy. Highs in the lower 60s.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 20s.
.FRIDAY...Partly cloudy. Highs in the upper 50s.
.FRIDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the lower 30s.
.SATURDAY...Partly cloudy. Highs in the mid 60s.

$$

WYZ023-221000-
Star Valley-
Including the cities of Afton, Alpine, Star Valley Ranch,
and Thayne
817 PM MDT Sat Mar 21 2026

.TONIGHT...Partly cloudy. Lows in the mid 30s. Southwest winds
around 10 mph early this evening.
.SUNDAY...Partly cloudy. Highs in the upper 50s.
.SUNDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the mid 30s.
.MONDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Highs around 60.
.MONDAY NIGHT...Partly cloudy. Lows in the upper 30s.
.TUESDAY...Cloudy in the morning, then becoming partly cloudy.
Highs in the lower 60s.
.TUESDAY NIGHT...Partly cloudy in the evening, then clearing.
Lows around 40.
.WEDNESDAY...Partly cloudy in the morning, then clearing. Highs
in the mid 60s.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 30s.
.THURSDAY...Mostly sunny. Highs in the mid 50s.
.THURSDAY NIGHT...Mostly clear in the evening, then becoming
partly cloudy. Lows around 30.
.FRIDAY...Partly cloudy. Highs around 60.
.FRIDAY NIGHT...Mostly cloudy. Lows in the mid 30s.
.SATURDAY...Partly cloudy. Highs around 60.

$$

WYZ025-221000-
Upper Green River Basin Foothills-
Including the city of Pinedale
817 PM MDT Sat Mar 21 2026

.TONIGHT...Mostly clear. Lows in the lower 30s. Northwest winds
10 to 15 mph with gusts up to 25 mph.
.SUNDAY...Mostly sunny. Highs in the mid 50s. Northwest winds
around 10 mph.
.SUNDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows around 30. North winds around 10 mph in the
evening.
.MONDAY...Partly cloudy. Highs in the upper 50s. West winds 10 to
15 mph with gusts up to 25 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 30s. Northwest
winds 10 to 15 mph with gusts up to 25 mph in the evening.
.TUESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Breezy with highs around 60.
.TUESDAY NIGHT...Partly cloudy in the evening, then clearing.
Lows in the mid 30s.
.WEDNESDAY...Sunny, breezy with highs in the lower 60s.
.WEDNESDAY NIGHT...Partly cloudy in the evening, then clearing.
Lows in the lower 30s.
.THURSDAY...Mostly sunny. Highs in the mid 50s.
.THURSDAY NIGHT...Mostly clear. Lows in the mid 20s.
.FRIDAY...Partly cloudy. Highs in the mid 50s.
.FRIDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows around 30.
.SATURDAY...Partly cloudy. Highs around 60.

$$

WYZ026-221000-
Upper Green River Basin-
Including the cities of La Barge, Big Piney, and Farson
817 PM MDT Sat Mar 21 2026

.TONIGHT...Mostly clear. Lows in the mid 30s. Northwest winds
10 to 15 mph. Gusts up to 30 mph early this evening.
.SUNDAY...Partly cloudy. Highs around 60. Northwest winds 10 to
15 mph.
.SUNDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the lower 30s. Northwest winds 10 to
15 mph in the evening.
.MONDAY...Partly cloudy and breezy. Highs in the mid 60s. West
winds 15 to 20 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy and breezy. Lows in the lower 30s.
Northwest winds 15 to 20 mph with gusts up to 30 mph in the
evening.
.TUESDAY...Partly cloudy and breezy. Highs in the upper 60s.
.TUESDAY NIGHT...Mostly clear and breezy. Lows in the upper 30s.
.WEDNESDAY...Sunny, breezy with highs in the upper 60s.
.WEDNESDAY NIGHT...Mostly clear and breezy. Lows in the mid 30s.
.THURSDAY...Mostly sunny and breezy. Highs in the lower 60s.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 20s.
.FRIDAY...Partly cloudy. Highs around 60.
.FRIDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows around 30.
.SATURDAY...Partly cloudy. Highs in the lower 60s.

$$

WYZ010-221000-
Northeast Johnson County-
Including the city of Buffalo
817 PM MDT Sat Mar 21 2026

.TONIGHT...Partly cloudy early this evening, then becoming
cloudy. Scattered rain showers after midnight. Breezy with lows
around 40. North winds 15 to 25 mph with gusts up to 40 mph,
becoming northeast 10 to 15 mph after midnight. Chance of rain
30 percent.
.SUNDAY...Mostly cloudy in the morning, then clearing. Much
cooler with highs in the mid 50s. North winds around 10 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 30s. Northeast
winds around 10 mph in the evening.
.MONDAY...Partly cloudy. Highs in the mid 60s. East winds around
10 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the upper 30s. Northeast winds around
10 mph, becoming southwest after midnight.
.TUESDAY...Mostly cloudy. Highs around 70.
.TUESDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. Lows in the mid 40s.
.WEDNESDAY...Partly cloudy and breezy. Highs in the mid 70s.
.WEDNESDAY NIGHT...Partly cloudy and breezy. Lows in the mid 30s.
.THURSDAY...Partly cloudy. Cooler with highs in the lower 50s.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 20s.
.FRIDAY...Partly cloudy. Highs in the mid 50s.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 30s.
.SATURDAY...Partly cloudy. Highs around 60.

$$

WYZ011-221000-
Southeast Johnson County-
Including the city of Kaycee
817 PM MDT Sat Mar 21 2026

.TONIGHT...Partly cloudy early this evening, then becoming mostly
cloudy. Breezy with lows in the upper 30s. North winds 15 to
25 mph with gusts up to 35 mph, becoming northeast 10 to 15 mph
with gusts up to 25 mph after midnight.
.SUNDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Much cooler with highs around 60. North winds around
10 mph in the afternoon.
.SUNDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the mid 30s. Northeast winds around 10 mph
in the evening.
.MONDAY...Partly cloudy. Highs in the upper 60s. South winds
around 10 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows in the upper 30s. North winds
around 10 mph, becoming southwest after midnight.
.TUESDAY...Mostly cloudy. Highs around 70.
.TUESDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. Lows in the mid 40s.
.WEDNESDAY...Partly cloudy and breezy. Highs in the mid 70s.
.WEDNESDAY NIGHT...Partly cloudy and breezy. Lows in the upper
30s.
.THURSDAY...Partly cloudy. Cooler with highs in the upper 50s.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 20s.
.FRIDAY...Partly cloudy. Highs in the mid 50s.
.FRIDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the lower 30s.
.SATURDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Highs in the lower 60s.

$$

WYZ027-221000-
South Lincoln County-
Including the cities of Kemmerer and Cokeville
817 PM MDT Sat Mar 21 2026

.TONIGHT...Mostly clear. Lows in the mid 30s. Northwest winds
10 to 15 mph with gusts up to 25 mph.
.SUNDAY...Partly cloudy. Highs around 60. West winds 10 to
15 mph.
.SUNDAY NIGHT...Mostly cloudy. Lows in the mid 30s. Northwest
winds 10 to 15 mph in the evening.
.MONDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Breezy with highs in the mid 60s. West winds 15 to 20 mph
with gusts up to 30 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy and breezy. Lows in the upper 30s.
West winds 15 to 20 mph with gusts up to 30 mph in the evening.
.TUESDAY...Partly cloudy in the morning, then clearing. Breezy
with highs in the upper 60s.
.TUESDAY NIGHT...Mostly clear and breezy. Lows in the lower 40s.
.WEDNESDAY...Sunny, breezy with highs around 70.
.WEDNESDAY NIGHT...Mostly clear and breezy. Lows in the upper
30s.
.THURSDAY...Sunny, breezy with highs in the lower 60s.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 30s.
.FRIDAY...Partly cloudy. Highs around 60.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 30s.
.SATURDAY...Partly cloudy. Highs in the lower 60s.

$$

WYZ016-221000-
Upper Wind River Basin-
Including the city of Dubois
817 PM MDT Sat Mar 21 2026

.TONIGHT...Mostly clear and breezy. Lows in the mid 30s.
Northwest winds 15 to 25 mph. Gusts up to 40 mph early this
evening.
.SUNDAY...Mostly sunny and breezy. Highs in the upper 50s.
Northwest winds 15 to 20 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 30s. Northwest
winds 10 to 15 mph.
.MONDAY...Partly cloudy and breezy. Highs around 60. Northwest
winds around 10 mph, becoming west 15 to 20 mph with gusts up to
30 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy and breezy. Lows around 40. West
winds 15 to 20 mph.
.TUESDAY...Partly cloudy and windy. Highs in the lower 60s.
.TUESDAY NIGHT...Partly cloudy in the evening, then clearing.
Windy with lows in the mid 40s.
.WEDNESDAY...Sunny, windy with highs in the mid 60s.
.WEDNESDAY NIGHT...Mostly clear and windy. Lows around 40.
.THURSDAY...Mostly sunny and breezy. Highs in the upper 50s.
.THURSDAY NIGHT...Mostly clear and breezy. Lows in the upper 20s.
.FRIDAY...Partly cloudy. Highs in the mid 50s.
.FRIDAY NIGHT...Partly cloudy. Lows around 30.
.SATURDAY...Partly cloudy. Highs around 60.

$$

WYZ001-221000-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
817 PM MDT Sat Mar 21 2026

.TONIGHT...Partly cloudy early this evening, then clearing. Lows
in the mid 20s. West winds 10 to 15 mph.
.SUNDAY...Mostly sunny. Highs in the mid 40s. Southwest winds
10 to 15 mph with gusts up to 25 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 20s. Southwest
winds 10 to 15 mph with gusts up to 25 mph in the evening.
.MONDAY...Partly cloudy. Highs in the upper 40s. South winds
around 10 mph, becoming southwest in the afternoon.
.MONDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the lower 30s. Southwest winds around
10 mph with gusts up to 25 mph.
.TUESDAY...Mostly cloudy with a slight chance of snow showers. A
chance of rain showers in the afternoon. Breezy with highs in the
upper 40s. Chance of precipitation 30 percent.
.TUESDAY NIGHT...Mostly cloudy. A chance of rain showers in the
evening. Lows in the mid 30s. Chance of rain 30 percent.
.WEDNESDAY...Partly cloudy with a slight chance of rain showers.
A slight chance of thunderstorms in the afternoon. Breezy with
highs in the lower 50s. Chance of rain 20 percent.
.WEDNESDAY NIGHT...Mostly cloudy with a slight chance of rain and
snow showers. Breezy with lows around 30. Chance of precipitation
20 percent.
.THURSDAY...Partly cloudy with a 20 percent chance of snow
showers. Highs in the mid 40s.
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 20s.
.FRIDAY...Partly cloudy. Highs in the upper 40s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 20s.
.SATURDAY...Partly cloudy. Highs in the lower 50s.

$$

WYZ029-221000-
Flaming Gorge-
817 PM MDT Sat Mar 21 2026

.TONIGHT...Partly cloudy and breezy. Lows around 40. Northwest
winds 15 to 20 mph with gusts up to 30 mph, diminishing to around
10 mph after midnight.
.SUNDAY...Partly cloudy. Highs in the mid 60s. Northwest winds
10 to 15 mph with gusts up to 25 mph.
.SUNDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows around 40. Northwest winds 10 to 15 mph with
gusts up to 25 mph in the evening.
.MONDAY...Mostly cloudy and breezy. Highs in the upper 60s.
Southwest winds around 10 mph, becoming west 15 to 20 mph with
gusts up to 30 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy and breezy. Lows in the lower 40s.
West winds 15 to 20 mph with gusts up to 30 mph, becoming
southwest around 10 mph after midnight.
.TUESDAY...Partly cloudy and windy. Highs in the lower 70s.
.TUESDAY NIGHT...Mostly clear and breezy. Lows in the mid 40s.
.WEDNESDAY...Mostly sunny and breezy. Highs in the mid 70s.
.WEDNESDAY NIGHT...Mostly clear in the evening, then becoming
partly cloudy. Breezy with lows in the lower 40s.
.THURSDAY...Mostly sunny and breezy. Highs in the upper 60s.
.THURSDAY NIGHT...Partly cloudy and breezy. Lows in the mid 30s.
.FRIDAY...Partly cloudy. Highs in the lower 60s.
.FRIDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the upper 30s.
.SATURDAY...Partly cloudy. Highs in the mid 60s.

$$

WYZ022-221000-
Casper Mountain-
817 PM MDT Sat Mar 21 2026

.TONIGHT...Mostly cloudy early this evening, then becoming partly
cloudy. Breezy with lows in the mid 30s. North winds 15 to 20 mph
with gusts up to 35 mph, becoming northeast 10 to 15 mph with
gusts up to 25 mph after midnight.
.SUNDAY...Partly cloudy. Highs in the mid 50s. Northwest winds
around 10 mph in the afternoon.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 30s. Northeast
winds around 10 mph, becoming southeast after midnight.
.MONDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Highs around 60. Southwest winds around 10 mph, becoming
west in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows around 40. West winds around
10 mph, becoming southwest after midnight. Gusts up to 25 mph.
.TUESDAY...Mostly cloudy and breezy. Highs in the mid 60s.
.TUESDAY NIGHT...Mostly cloudy in the evening, then clearing.
Breezy with lows in the upper 40s.
.WEDNESDAY...Partly cloudy and windy. Highs in the upper 60s.
.WEDNESDAY NIGHT...Partly cloudy and breezy. Lows in the upper
30s.
.THURSDAY...Partly cloudy. Highs in the mid 50s.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 20s.
.FRIDAY...Partly cloudy. Highs in the lower 50s.
.FRIDAY NIGHT...Mostly cloudy. Lows in the lower 30s.
.SATURDAY...Mostly cloudy. Highs in the upper 50s.

$$

WYZ002-221000-
Absaroka Mountains-
817 PM MDT Sat Mar 21 2026

.TONIGHT...Partly cloudy and breezy. Lows in the upper 20s. West
winds 15 to 25 mph. Gusts up to 45 mph, decreasing to 35 mph
after midnight.
.SUNDAY...Mostly sunny and breezy. Highs in the lower 40s. West
winds 15 to 20 mph with gusts up to 30 mph.
.SUNDAY NIGHT...Partly cloudy and breezy. Lows in the upper 20s.
West winds 15 to 20 mph with gusts up to 30 mph.
.MONDAY...Partly cloudy and breezy. Highs in the mid 40s. West
winds 15 to 20 mph with gusts up to 30 mph.
.MONDAY NIGHT...Partly cloudy and breezy. Lows in the lower 30s.
West winds 15 to 20 mph with gusts up to 35 mph.
.TUESDAY...Partly cloudy in the morning, then becoming mostly
cloudy. A slight chance of. Windy with highs in the mid 40s.
.TUESDAY NIGHT...Partly cloudy and windy. Lows in the mid 30s.
.WEDNESDAY...Mostly sunny and windy. Highs in the upper 40s.
.WEDNESDAY NIGHT...Mostly clear in the evening, then becoming
partly cloudy. Windy with lows in the lower 30s.
.THURSDAY...Partly cloudy and breezy. Highs around 40.
.THURSDAY NIGHT...Partly cloudy and breezy. Lows in the lower
20s.
.FRIDAY...Partly cloudy and breezy. Highs in the lower 40s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 20s.
.SATURDAY...Partly cloudy. Highs in the mid 40s.

$$

WYZ007-221000-
Owl Creek and Bridger Mountains-
817 PM MDT Sat Mar 21 2026

.TONIGHT...Partly cloudy and breezy. Lows in the upper 30s. 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.
.SUNDAY...Partly cloudy in the morning, then clearing. Highs in
the upper 50s. North winds around 10 mph, becoming west in the
afternoon.
.SUNDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the upper 30s. North winds around 10 mph
with gusts up to 20 mph, becoming southwest after midnight.
.MONDAY...Partly cloudy. Highs in the lower 60s. West winds 10 to
15 mph with gusts up to 25 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 40s. West winds
10 to 15 mph.
.TUESDAY...Partly cloudy and breezy. Highs in the mid 60s.
.TUESDAY NIGHT...Partly cloudy and breezy. Lows in the upper 40s.
.WEDNESDAY...Mostly sunny in the morning, then becoming partly
cloudy. Windy with highs around 70.
.WEDNESDAY NIGHT...Partly cloudy and windy. Lows in the upper
30s.
.THURSDAY...Partly cloudy in the morning, then clearing. Breezy
with highs in the mid 50s.
.THURSDAY NIGHT...Partly cloudy and breezy. Lows around 30.
.FRIDAY...Partly cloudy. Highs in the mid 50s.
.FRIDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the mid 30s.
.SATURDAY...Partly cloudy. Highs in the upper 50s.

$$

WYZ008-221000-
Bighorn Mountains West-
817 PM MDT Sat Mar 21 2026

.TONIGHT...Mostly cloudy with scattered rain and snow showers.
Breezy with lows in the lower 30s. West winds 15 to 20 mph. Gusts
up to 35 mph early this evening. Chance of precipitation
30 percent.
.SUNDAY...Partly cloudy in the morning, then clearing. Cooler
with highs in the upper 40s. West winds 10 to 15 mph with gusts
up to 25 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 30s. North winds
around 10 mph, becoming southeast after midnight.
.MONDAY...Partly cloudy. Highs in the mid 50s. West winds around
10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the upper 30s. Southwest
winds around 10 mph with gusts up to 20 mph.
.TUESDAY...Mostly cloudy. Highs in the mid 50s.
.TUESDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. Breezy with lows in the lower 40s.
.WEDNESDAY...Partly cloudy and breezy. Highs in the lower 60s.
.WEDNESDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. Breezy with lows in the mid 30s.
.THURSDAY...Partly cloudy with a 30 percent chance of snow
showers. Breezy with highs in the upper 40s.
.THURSDAY NIGHT...Partly cloudy. Lows in the mid 20s.
.FRIDAY...Partly cloudy. Highs in the mid 40s.
.FRIDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the upper 20s.
.SATURDAY...Mostly cloudy. Highs around 50.

$$

WYZ009-221000-
Bighorn Mountains Southeast-
817 PM MDT Sat Mar 21 2026

.TONIGHT...Mostly cloudy. Scattered rain and snow showers after
midnight. Breezy with lows in the lower 30s. Northwest winds
20 to 25 mph with gusts up to 35 mph, becoming west 10 to 15 mph
with gusts up to 25 mph after midnight. Chance of precipitation
30 percent.
.SUNDAY...Partly cloudy in the morning, then clearing. Cooler
with highs in the upper 40s. West winds 10 to 15 mph with gusts
up to 25 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 30s. North winds
around 10 mph, becoming west after midnight.
.MONDAY...Partly cloudy. Highs in the mid 50s. West winds 10 to
15 mph with gusts up to 25 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the upper 30s. West winds
10 to 15 mph with gusts up to 30 mph.
.TUESDAY...Partly cloudy in the morning, then becoming mostly
cloudy. Breezy with highs in the upper 50s.
.TUESDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. Breezy with lows in the mid 40s.
.WEDNESDAY...Partly cloudy and windy. Highs in the lower 60s.
.WEDNESDAY NIGHT...Partly cloudy and windy. Lows in the mid 30s.
.THURSDAY...Partly cloudy with a 20 percent chance of snow
showers. Breezy with highs in the upper 40s.
.THURSDAY NIGHT...Partly cloudy and breezy. Lows in the mid 20s.
.FRIDAY...Partly cloudy. Highs in the mid 40s.
.FRIDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the upper 20s.
.SATURDAY...Partly cloudy. Highs around 50.

$$

WYZ012-221000-
Teton and Gros Ventre Mountains-
817 PM MDT Sat Mar 21 2026

.TONIGHT...Partly cloudy and breezy. Lows in the upper 20s. West
winds 15 to 20 mph with gusts up to 35 mph.
.SUNDAY...Mostly sunny. Highs in the mid 40s. West winds 10 to
15 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 20s. Southwest
winds around 10 mph with gusts up to 20 mph, becoming southeast
after midnight.
.MONDAY...Partly cloudy. Highs in the upper 40s. South winds
around 10 mph, becoming west with gusts up to 25 mph in the
afternoon.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 30s. Southwest
winds 10 to 15 mph with gusts up to 25 mph.
.TUESDAY...Mostly 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.
.TUESDAY NIGHT...Partly cloudy. A chance of rain showers in the
evening. Breezy with lows in the mid 30s. Chance of rain
30 percent.
.WEDNESDAY...Mostly sunny and breezy. Highs in the lower 50s.
.WEDNESDAY NIGHT...Partly cloudy and breezy. Lows in the lower
30s.
.THURSDAY...Partly cloudy and breezy. Highs in the mid 40s.
.THURSDAY NIGHT...Partly cloudy. Lows in the mid 20s.
.FRIDAY...Partly cloudy. Highs in the upper 40s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 20s.
.SATURDAY...Partly cloudy. Highs around 50.

$$

WYZ014-221000-
Wind River Mountains West-
817 PM MDT Sat Mar 21 2026

.TONIGHT...Partly cloudy early this evening, then clearing.
Breezy with lows in the upper 20s. Northwest winds 15 to 20 mph
with gusts up to 35 mph.
.SUNDAY...Mostly sunny in the morning, then becoming partly
cloudy. Highs in the mid 40s. West winds 10 to 15 mph with gusts
up to 25 mph.
.SUNDAY NIGHT...Mostly cloudy. Lows in the upper 20s. Northwest
winds 10 to 15 mph.
.MONDAY...Partly cloudy and breezy. Highs in the upper 40s. West
winds around 10 mph with gusts up to 20 mph, increasing to 15 to
20 mph with gusts up to 30 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy and breezy. Lows in the lower 30s.
West winds 15 to 20 mph with gusts up to 30 mph.
.TUESDAY...Mostly cloudy and windy. Highs around 50.
.TUESDAY NIGHT...Partly cloudy in the evening, then clearing.
Breezy with lows in the mid 30s.
.WEDNESDAY...Sunny, windy with highs in the lower 50s.
.WEDNESDAY NIGHT...Partly cloudy in the evening, then clearing.
Breezy with lows around 30.
.THURSDAY...Mostly sunny and breezy. Highs in the mid 40s.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 20s.
.FRIDAY...Partly cloudy. Highs in the mid 40s.
.FRIDAY NIGHT...Mostly cloudy. Lows in the mid 20s.
.SATURDAY...Partly cloudy. Highs in the upper 40s.

$$

WYZ015-221000-
Wind River Mountains East-
817 PM MDT Sat Mar 21 2026

.TONIGHT...Mostly clear and windy. Lows around 30. West winds
20 to 30 mph. Gusts up to 50 mph, decreasing to 40 mph after
midnight.
.SUNDAY...Mostly sunny in the morning, then becoming partly
cloudy. Breezy with highs in the mid 40s. West winds 15 to 20 mph
with gusts up to 35 mph.
.SUNDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. Breezy with lows in the upper 20s. 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.
.MONDAY...Partly cloudy and breezy. Highs in the upper 40s. West
winds 10 to 15 mph, increasing to 20 to 25 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy and breezy. Lows in the mid 30s.
West winds 15 to 25 mph with gusts up to 40 mph.
.TUESDAY...Partly cloudy and windy. Highs around 50.
.TUESDAY NIGHT...Partly cloudy in the evening, then clearing.
Windy with lows in the upper 30s.
.WEDNESDAY...Sunny, windy with highs in the lower 50s.
.WEDNESDAY NIGHT...Mostly clear and windy. Lows in the lower 30s.
.THURSDAY...Mostly sunny and windy. Highs in the mid 40s.
.THURSDAY NIGHT...Mostly clear and breezy. Lows in the mid 20s.
.FRIDAY...Partly cloudy and breezy. Highs in the mid 40s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 20s.
.SATURDAY...Partly cloudy and breezy. Highs in the upper 40s.

$$

WYZ019-221000-
Green Mountains and Rattlesnake Range-
Including the city of Jeffrey City
817 PM MDT Sat Mar 21 2026

.TONIGHT...Partly cloudy and breezy. Lows in the upper 30s.
Northwest winds 15 to 20 mph with gusts up to 35 mph, becoming
north 10 to 15 mph with gusts up to 25 mph after midnight.
.SUNDAY...Partly cloudy. Highs around 60. Northwest winds 10 to
15 mph.
.SUNDAY NIGHT...Mostly cloudy. Lows in the mid 30s. Northwest
winds 10 to 15 mph with gusts up to 25 mph, becoming north after
midnight.
.MONDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Breezy with highs in the mid 60s. Southwest winds around
10 mph, becoming west 15 to 20 mph with gusts up to 30 mph in the
afternoon.
.MONDAY NIGHT...Partly cloudy and breezy. Lows around 40. West
winds 15 to 20 mph with gusts up to 35 mph, becoming southwest
around 10 mph with gusts up to 25 mph after midnight.
.TUESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Windy with highs in the upper 60s.
.TUESDAY NIGHT...Partly cloudy in the evening, then clearing.
Breezy with lows in the mid 40s.
.WEDNESDAY...Mostly sunny and windy. Highs in the lower 70s.
.WEDNESDAY NIGHT...Partly cloudy and breezy. Lows in the upper
30s.
.THURSDAY...Mostly sunny and breezy. Highs in the lower 60s.
.THURSDAY NIGHT...Partly cloudy and breezy. Lows around 30.
.FRIDAY...Partly cloudy. Highs in the upper 50s.
.FRIDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the lower 30s.
.SATURDAY...Mostly cloudy. Highs in the lower 60s.

$$

WYZ024-221000-
Salt River and Wyoming Ranges-
817 PM MDT Sat Mar 21 2026

.TONIGHT...Mostly clear and breezy. Lows in the lower 30s.
Northwest winds 15 to 20 mph with gusts up to 30 mph.
.SUNDAY...Mostly sunny in the morning, then becoming partly
cloudy. Highs in the lower 50s. West winds 10 to 15 mph with
gusts up to 25 mph.
.SUNDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the lower 30s. Northwest winds 10 to
15 mph in the evening.
.MONDAY...Partly cloudy. Highs in the mid 50s. West winds 10 to
15 mph. Gusts up to 30 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 30s. West winds
10 to 15 mph. Gusts up to 30 mph in the evening.
.TUESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Breezy with highs in the mid 50s.
.TUESDAY NIGHT...Partly cloudy in the evening, then clearing.
Breezy with lows in the upper 30s.
.WEDNESDAY...Mostly sunny and breezy. Highs in the upper 50s.
.WEDNESDAY NIGHT...Partly cloudy in the evening, then clearing.
Breezy with lows in the mid 30s.
.THURSDAY...Mostly sunny and breezy. Highs around 50.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 20s.
.FRIDAY...Partly cloudy. Highs in the lower 50s.
.FRIDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the lower 30s.
.SATURDAY...Partly cloudy. Highs in the mid 50s.

$$

WYZ030-221000-
East Sweetwater County-
Including the city of Wamsutter
817 PM MDT Sat Mar 21 2026

.TONIGHT...Partly cloudy and breezy. Lows around 40. Northwest
winds 15 to 20 mph with gusts up to 30 mph.
.SUNDAY...Partly cloudy. Highs in the lower 60s. West winds 10 to
15 mph with gusts up to 25 mph.
.SUNDAY NIGHT...Mostly cloudy. Lows in the upper 30s. Northwest
winds 10 to 15 mph with gusts up to 25 mph in the evening.
.MONDAY...Mostly cloudy and breezy. Highs in the mid 60s.
Southwest winds around 10 mph, becoming west 15 to 20 mph with
gusts up to 30 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy and breezy. Lows around 40. West
winds 15 to 20 mph with gusts up to 30 mph, becoming southwest
around 10 mph after midnight.
.TUESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Breezy with highs around 70.
.TUESDAY NIGHT...Partly cloudy in the evening, then clearing.
Breezy with lows in the lower 40s.
.WEDNESDAY...Mostly sunny and breezy. Highs in the mid 70s.
.WEDNESDAY NIGHT...Mostly clear and breezy. Lows in the lower
40s.
.THURSDAY...Mostly sunny and breezy. Highs in the mid 60s.
.THURSDAY NIGHT...Partly cloudy and breezy. Lows in the lower
30s.
.FRIDAY...Partly cloudy. Highs around 60.
.FRIDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the mid 30s.
.SATURDAY...Mostly cloudy. Highs in the mid 60s.

$$