Zone Forecast Product
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
387 FPUS55 KRIW 272148 ZFPRIW Zone Forecast Product for Western and Central Wyoming National Weather Service Riverton WY 347 PM MDT Sun Sep 27 2026 WYZ020-272300- Natrona County Lower Elevations- Including the city of Casper 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Cloudy. Highs in the lower 70s. East winds 10 to 15 mph. .TONIGHT...A slight chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows around 50. East winds 10 to 15 mph, becoming south after midnight. Gusts up to 30 mph. Chance of rain 30 percent. .MONDAY...Partly cloudy in the morning, then becoming mostly cloudy. A chance of showers. A slight chance of thunderstorms in the afternoon. Highs around 70. Southwest winds around 10 mph with gusts up to 20 mph. Chance of rain 30 percent. .MONDAY NIGHT...Cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Lows in the mid 40s. Northwest winds around 10 mph in the evening. Chance of rain 30 percent. .TUESDAY...Partly cloudy in the morning, then clearing. Highs around 70. .TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. .WEDNESDAY...Sunny. Highs in the upper 60s. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 40s. .THURSDAY...Mostly sunny. Highs in the upper 60s. .THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. .FRIDAY...Sunny. Highs in the mid 70s. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 40s. .SATURDAY...Partly cloudy in the morning, then clearing. Highs around 70. $$ WYZ017-272300- Wind River Basin- Including the cities of Riverton and Shoshoni 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Mostly cloudy. Highs in the mid 70s. East winds around 10 mph with gusts up to 20 mph. .TONIGHT...A slight chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the lower 50s. South winds 10 to 15 mph. Gusts up to 30 mph in the evening. Chance of rain 30 percent. .MONDAY...Partly cloudy in the morning, then becoming mostly cloudy. A chance of showers. A slight chance of thunderstorms in the afternoon. Highs around 70. West winds around 10 mph in the morning. Chance of rain 30 percent. .MONDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the upper 40s. Chance of rain 30 percent. .TUESDAY...Partly cloudy in the morning, then clearing. Highs around 70. .TUESDAY NIGHT...Clear. Lows in the mid 40s. .WEDNESDAY...Sunny. Highs around 70. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 40s. .THURSDAY...Mostly sunny. Highs in the upper 60s. .THURSDAY NIGHT...Clear. Lows in the mid 40s. .FRIDAY...Mostly sunny. Highs in the mid 70s. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 40s. .SATURDAY...Partly cloudy in the morning, then clearing. Highs around 70. $$ WYZ018-272300- Lander Foothills- Including the city of Lander 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Mostly sunny. Highs in the mid 70s. Northeast winds around 10 mph. .TONIGHT...A slight chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Breezy with lows in the lower 50s. Southwest winds 20 to 25 mph with gusts up to 40 mph, diminishing to around 10 mph with gusts up to 20 mph after midnight. Chance of rain 40 percent. .MONDAY...Mostly cloudy. Showers likely in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 60 percent. .MONDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the upper 40s. Chance of rain 20 percent. .TUESDAY...Partly cloudy in the morning, then clearing. Highs in the upper 60s. .TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. .WEDNESDAY...Sunny. Highs in the lower 70s. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 40s. .THURSDAY...Mostly sunny. Highs around 70. .THURSDAY NIGHT...Mostly clear. Lows in the mid 40s. .FRIDAY...Sunny. Highs in the mid 70s. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 40s. .SATURDAY...Partly cloudy in the morning, then clearing. Highs in the lower 70s. $$ WYZ028-272300- Rock Springs and Green River- Including the cities of Rock Springs and Green River 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Cloudy with a 30 percent chance of showers. Highs in the lower 70s. South winds around 10 mph with gusts up to 20 mph. .TONIGHT...Mostly cloudy with a slight chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the upper 40s. West winds 10 to 15 mph with gusts up to 25 mph in the evening. Chance of rain 60 percent. .MONDAY...Mostly cloudy. Showers likely in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs around 60. Chance of rain 60 percent. .MONDAY NIGHT...A slight chance of thunderstorms in the evening. Cloudy with a chance of showers. Lows in the lower 40s. Southwest winds around 10 mph with gusts up to 20 mph in the evening. Chance of rain 30 percent. .TUESDAY...Mostly cloudy with a chance of showers in the morning, then partly cloudy in the afternoon. Highs in the mid 60s. Chance of rain 30 percent. .TUESDAY NIGHT...Mostly clear. Lows in the upper 30s. .WEDNESDAY...Mostly sunny. Highs around 70. .WEDNESDAY NIGHT...Clear. Lows around 40. .THURSDAY...Sunny. Highs around 70. .THURSDAY NIGHT...Clear. Lows around 40. .FRIDAY...Sunny. Highs in the lower 70s. .FRIDAY NIGHT...Mostly clear. Lows in the lower 40s. .SATURDAY...Partly cloudy in the morning, then clearing. Highs around 70. $$ WYZ013-272300- Jackson Hole- Including the city of Jackson 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Mostly cloudy. Highs around 70. Southwest winds around 10 mph with gusts up to 20 mph. .TONIGHT...Cloudy. Showers likely in the evening, then showers with a slight chance of thunderstorms after midnight. Lows in the lower 40s. South winds around 10 mph, becoming southeast after midnight. Gusts up to 25 mph. Chance of rain 80 percent. .MONDAY...Partly cloudy with showers likely. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs around 60. Chance of rain 60 percent. .MONDAY NIGHT...Partly cloudy with a chance of rain showers with a slight chance of thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 30s. Chance of rain 30 percent. .TUESDAY...Mostly sunny. Highs in the mid 60s. .TUESDAY NIGHT...Clear. Lows in the mid 30s. .WEDNESDAY...Sunny. Highs in the mid 60s. .WEDNESDAY NIGHT...Clear. Lows in the mid 30s. .THURSDAY...Sunny. Highs in the mid 60s. .THURSDAY NIGHT...Clear. Lows in the upper 30s. .FRIDAY...Mostly sunny. Highs in the upper 60s. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 30s. .SATURDAY...Partly cloudy in the morning, then clearing. Highs in the mid 60s. $$ WYZ003-272300- Cody Foothills- Including the cities of Clark, Cody, and Meeteetse 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Partly cloudy. Near steady temperature in the lower 60s. Northeast winds around 10 mph with gusts up to 20 mph. .TONIGHT...Cloudy. Showers likely after midnight. Lows in the upper 40s. Northwest winds around 10 mph, becoming southwest after midnight. Chance of rain 60 percent. .MONDAY...Mostly cloudy with showers likely in the morning, then partly cloudy with a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 60s. West winds around 10 mph with gusts up to 20 mph, becoming east in the afternoon. Chance of rain 60 percent. .MONDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 40s. Northwest winds around 10 mph, becoming west after midnight. Chance of rain 30 percent. .TUESDAY...Sunny. Highs in the lower 70s. Southwest winds around 10 mph with gusts up to 20 mph, becoming east in the afternoon. .TUESDAY NIGHT...Clear. Lows in the upper 40s. .WEDNESDAY...Sunny. Highs in the upper 60s. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 40s. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly clear. Lows in the mid 40s. .FRIDAY...Mostly sunny. Highs in the lower 70s. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. .SATURDAY...Partly cloudy in the morning, then clearing. A slight chance of. Highs in the mid 60s. $$ WYZ004-272300- North Bighorn Basin- Including the cities of Basin, Greybull, Lovell, Powell, and Shell 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Partly cloudy. Near steady temperature in the upper 60s. Northeast winds around 10 mph. .TONIGHT...Cloudy. A chance of showers after midnight. Lows around 50. Northwest winds around 10 mph with gusts up to 20 mph in the evening. Chance of rain 30 percent. .MONDAY...Mostly cloudy with a chance of showers in the morning, then partly cloudy in the afternoon. Highs around 70. Southeast winds around 10 mph in the afternoon. Chance of rain 40 percent. .MONDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 40s. Northwest winds around 10 mph with gusts up to 20 mph in the evening. .TUESDAY...Sunny. Highs in the mid 70s. Southeast winds around 10 mph with gusts up to 20 mph in the afternoon. .TUESDAY NIGHT...Clear. Lows in the mid 40s. .WEDNESDAY...Sunny. Highs in the lower 70s. .WEDNESDAY NIGHT...Mostly clear and breezy. Lows in the lower 40s. .THURSDAY...Mostly sunny. Highs around 70. .THURSDAY NIGHT...Clear. Lows in the mid 40s. .FRIDAY...Mostly sunny. Highs in the mid 70s. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 50. .SATURDAY...Partly cloudy in the morning, then clearing. Highs around 70. $$ WYZ006-272300- Southeast Bighorn Basin- Including the cities of Ten Sleep and Worland 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Cloudy. Highs in the lower 70s. .TONIGHT...Mostly cloudy with a 30 percent chance of showers. Lows in the lower 50s. Northeast winds around 10 mph with gusts up to 20 mph, becoming southeast after midnight. .MONDAY...Partly cloudy. A chance of showers in the morning. Highs in the lower 70s. Chance of rain 30 percent. .MONDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 40s. West winds around 10 mph in the evening. .TUESDAY...Mostly sunny. Highs in the lower 70s. .TUESDAY NIGHT...Clear. Lows in the mid 40s. .WEDNESDAY...Sunny. Highs in the lower 70s. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 40s. .THURSDAY...Mostly sunny. Highs around 70. .THURSDAY NIGHT...Clear. Lows in the mid 40s. .FRIDAY...Sunny. Highs in the mid 70s. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 50. .SATURDAY...Partly cloudy in the morning, then clearing. Highs in the lower 70s. $$ WYZ005-272300- Southwest Bighorn Basin- Including the city of Thermopolis 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Cloudy. Highs in the lower 70s. .TONIGHT...Cloudy with a 30 percent chance of showers. Lows in the lower 50s. North winds around 10 mph, becoming south with gusts up to 20 mph after midnight. .MONDAY...Mostly cloudy in the morning, then becoming partly cloudy. A chance of showers. A slight chance of thunderstorms in the afternoon. Highs around 70. Chance of rain 30 percent. .MONDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 40s. Northwest winds around 10 mph in the evening. .TUESDAY...Mostly sunny. Highs in the lower 70s. East winds around 10 mph in the afternoon. .TUESDAY NIGHT...Clear. Lows in the mid 40s. .WEDNESDAY...Sunny. Highs in the lower 70s. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 40s. .THURSDAY...Mostly sunny. Highs around 70. .THURSDAY NIGHT...Clear. Lows in the mid 40s. .FRIDAY...Mostly sunny. Highs in the mid 70s. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 50. .SATURDAY...Partly cloudy in the morning, then clearing. Highs around 70. $$ WYZ023-272300- Star Valley- Including the cities of Afton, Alpine, Star Valley Ranch, and Thayne 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Mostly cloudy. Highs in the lower 70s. Southwest winds around 10 mph with gusts up to 20 mph. .TONIGHT...A slight chance of thunderstorms. Showers. Lows in the mid 40s. South winds around 10 mph with gusts up to 20 mph. Chance of rain 80 percent. .MONDAY...Partly cloudy with showers likely. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 60 percent. .MONDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows around 40. .TUESDAY...Partly cloudy in the morning, then clearing. Highs in the mid 60s. .TUESDAY NIGHT...Clear. Lows in the mid 30s. .WEDNESDAY...Sunny. Highs in the upper 60s. .WEDNESDAY NIGHT...Clear. Lows in the upper 30s. .THURSDAY...Sunny. Highs around 70. .THURSDAY NIGHT...Clear. Lows around 40. .FRIDAY...Mostly sunny. Highs around 70. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 40. .SATURDAY...Partly cloudy in the morning, then clearing. Highs in the upper 60s. $$ WYZ025-272300- Upper Green River Basin Foothills- Including the city of Pinedale 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Mostly cloudy. Highs around 70. South winds around 10 mph with gusts up to 20 mph. .TONIGHT...Cloudy with a slight chance of thunderstorms. Showers. Lows in the lower 40s. South winds around 10 mph, becoming east after midnight. Chance of rain 80 percent. .MONDAY...Showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs around 60. Chance of rain 80 percent. .MONDAY NIGHT...Partly cloudy. Lows in the mid 30s. North winds around 10 mph. .TUESDAY...Mostly sunny. Highs in the lower 60s. .TUESDAY NIGHT...Clear. Lows in the mid 30s. .WEDNESDAY...Sunny. Highs in the mid 60s. .WEDNESDAY NIGHT...Clear. Lows in the mid 30s. .THURSDAY...Sunny. Highs in the mid 60s. .THURSDAY NIGHT...Clear. Lows in the mid 30s. .FRIDAY...Mostly sunny. Highs in the mid 60s. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 40. .SATURDAY...Partly cloudy in the morning, then clearing. Highs in the mid 60s. $$ WYZ026-272300- Upper Green River Basin- Including the cities of La Barge, Big Piney, and Farson 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Mostly cloudy with a 30 percent chance of showers. Highs around 70. Southwest winds around 10 mph with gusts up to 30 mph. .TONIGHT...Showers likely with a slight chance of thunderstorms. Lows in the mid 40s. South winds 10 to 15 mph with gusts up to 25 mph in the evening. Chance of rain 60 percent. .MONDAY...Mostly cloudy. Showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs around 60. Chance of rain 80 percent. .MONDAY NIGHT...Mostly cloudy. Lows around 40. West winds around 10 mph, becoming northwest after midnight. .TUESDAY...Partly cloudy in the morning, then clearing. Highs in the mid 60s. North winds around 10 mph in the morning. .TUESDAY NIGHT...Mostly clear. Lows in the mid 30s. .WEDNESDAY...Sunny. Highs in the upper 60s. .WEDNESDAY NIGHT...Clear. Lows in the upper 30s. .THURSDAY...Sunny. Highs in the mid 60s. .THURSDAY NIGHT...Clear. Lows in the upper 30s. .FRIDAY...Sunny. Highs around 70. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 40. .SATURDAY...Partly cloudy in the morning, then clearing. Highs in the upper 60s. $$ WYZ010-272300- Northeast Johnson County- Including the city of Buffalo 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Partly cloudy. Near steady temperature in the upper 60s. Southeast winds around 10 mph with gusts up to 20 mph. .TONIGHT...Cloudy. A chance of showers in the evening, then showers likely after midnight. Lows in the lower 50s. South winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 60 percent. .MONDAY...Partly cloudy with a 30 percent chance of showers. Highs around 70. Northwest winds 10 to 15 mph, becoming north in the afternoon. .MONDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 40s. North winds around 10 mph with gusts up to 20 mph in the evening. .TUESDAY...Mostly sunny. Highs in the lower 70s. Southeast winds around 10 mph in the afternoon. .TUESDAY NIGHT...Clear. Lows in the upper 40s. .WEDNESDAY...Sunny. Highs around 70. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 40s. .THURSDAY...Partly cloudy in the morning, then clearing. Highs in the upper 60s. .THURSDAY NIGHT...Mostly clear. Lows in the mid 40s. .FRIDAY...Mostly sunny. Highs in the lower 70s. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 40s. .SATURDAY...Partly cloudy in the morning, then clearing. Highs in the upper 60s. $$ WYZ011-272300- Southeast Johnson County- Including the city of Kaycee 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Cloudy. Highs around 70. Southeast winds around 10 mph with gusts up to 20 mph. .TONIGHT...A slight chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the lower 50s. South winds 10 to 15 mph. Gusts up to 35 mph, decreasing to 25 mph after midnight. Chance of rain 30 percent. .MONDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Southwest winds around 10 mph with gusts up to 20 mph, becoming north in the afternoon. Chance of rain 30 percent. .MONDAY NIGHT...Mostly cloudy. A chance of showers in the evening. Lows in the upper 40s. North winds around 10 mph with gusts up to 20 mph in the evening. Chance of rain 30 percent. .TUESDAY...Partly cloudy in the morning, then clearing. Highs in the lower 70s. South winds around 10 mph in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. .WEDNESDAY...Sunny. Highs around 70. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 40s. .THURSDAY...Partly cloudy in the morning, then clearing. Highs in the upper 60s. .THURSDAY NIGHT...Mostly clear. Lows in the mid 40s. .FRIDAY...Sunny. Highs in the mid 70s. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 40s. .SATURDAY...Partly cloudy in the morning, then clearing. Highs around 70. $$ WYZ027-272300- South Lincoln County- Including the cities of Kemmerer and Cokeville 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Cloudy with a 30 percent chance of showers. Highs around 70. Southwest winds 10 to 15 mph with gusts up to 25 mph. .TONIGHT...Mostly cloudy with showers likely with a slight chance of thunderstorms. Lows in the upper 40s. South winds around 10 mph with gusts up to 20 mph. Chance of rain 60 percent. .MONDAY...Mostly cloudy. Showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs around 60. Southeast winds around 10 mph in the morning. Chance of rain 80 percent. .MONDAY NIGHT...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Lows around 40. Chance of rain 40 percent. .TUESDAY...Partly cloudy in the morning, then clearing. Highs in the lower 60s. .TUESDAY NIGHT...Mostly clear. Lows in the upper 30s. .WEDNESDAY...Sunny. Highs in the mid 60s. .WEDNESDAY NIGHT...Clear. Lows around 40. .THURSDAY...Sunny. Highs in the mid 60s. .THURSDAY NIGHT...Clear. Lows around 40. .FRIDAY...Sunny. Highs around 70. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 40. .SATURDAY...Partly cloudy in the morning, then clearing. Highs around 70. $$ WYZ016-272300- Upper Wind River Basin- Including the city of Dubois 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Partly cloudy. Highs in the mid 60s. Southeast winds around 10 mph. .TONIGHT...Cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then showers after midnight. Lows in the mid 40s. South winds around 10 mph, becoming northwest after midnight. Chance of rain 80 percent. .MONDAY...Mostly cloudy with showers likely. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs around 60. Northwest winds around 10 mph, becoming southwest in the afternoon. Chance of rain 60 percent. .MONDAY NIGHT...Partly cloudy. A chance of rain showers with a slight chance of thunderstorms in the evening. Lows around 40. Northwest winds around 10 mph in the evening. Chance of rain 30 percent. .TUESDAY...Mostly sunny. Highs in the mid 60s. West winds around 10 mph. .TUESDAY NIGHT...Clear. Lows around 40. .WEDNESDAY...Sunny. Highs in the mid 60s. .WEDNESDAY NIGHT...Clear. Lows around 40. .THURSDAY...Mostly sunny. Highs in the lower 60s. .THURSDAY NIGHT...Mostly clear. Lows around 40. .FRIDAY...Mostly sunny. Highs around 70. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 40s. .SATURDAY...Partly cloudy in the morning, then clearing. Highs in the mid 60s. $$ WYZ001-272300- Yellowstone National Park- Including the cities of Lake, Mammoth, and Old Faithful 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Mostly cloudy. Highs in the lower 60s. Southwest winds around 10 mph with gusts up to 20 mph. .TONIGHT...Mostly cloudy. Showers with a slight chance of thunderstorms after midnight. Lows in the upper 30s. South winds around 10 mph with gusts up to 25 mph. Chance of rain 80 percent. .MONDAY...Partly cloudy. Showers with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 50s. Southeast winds around 10 mph, becoming southwest in the afternoon. Chance of rain 80 percent. .MONDAY NIGHT...Partly cloudy with a chance of rain showers with a slight chance of thunderstorms in the evening, then mostly clear after midnight. Lows in the lower 30s. Chance of rain 30 percent. .TUESDAY...Mostly sunny. Highs in the upper 50s. West winds around 10 mph with gusts up to 20 mph in the afternoon. .TUESDAY NIGHT...Clear. Lows in the lower 30s. .WEDNESDAY...Sunny. Highs in the upper 50s. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 30s. .THURSDAY...Mostly sunny. Highs in the upper 50s. .THURSDAY NIGHT...Mostly clear. Lows in the mid 30s. .FRIDAY...Mostly sunny. Highs around 60. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 30s. .SATURDAY...Partly cloudy in the morning, then clearing. Highs in the upper 50s. $$ WYZ029-272300- Flaming Gorge- 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Cloudy, breezy with highs in the lower 70s. South winds 15 to 20 mph. .TONIGHT...A slight chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows around 50. Southwest winds 10 to 15 mph with gusts up to 25 mph in the evening. Chance of rain 30 percent. .MONDAY...Mostly cloudy. Showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs around 60. Chance of rain 80 percent. .MONDAY NIGHT...Cloudy. Showers likely with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the mid 40s. Southwest winds around 10 mph in the evening. Chance of rain 60 percent. .TUESDAY...Mostly cloudy with a chance of showers in the morning, then partly cloudy in the afternoon. Highs in the lower 60s. North winds around 10 mph in the afternoon. Chance of rain 30 percent. .TUESDAY NIGHT...Mostly clear. Lows in the lower 40s. .WEDNESDAY...Mostly sunny. Highs in the upper 60s. .WEDNESDAY NIGHT...Clear. Lows in the lower 40s. .THURSDAY...Sunny. Highs in the upper 60s. .THURSDAY NIGHT...Clear. Lows in the mid 40s. .FRIDAY...Mostly sunny. Highs in the lower 70s. .FRIDAY NIGHT...Mostly clear. Lows in the mid 40s. .SATURDAY...Partly cloudy in the morning, then clearing. Highs around 70. $$ WYZ022-272300- Casper Mountain- 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Cloudy with a chance of showers with a slight chance of thunderstorms. Near steady temperature in the mid 60s. South winds around 10 mph with gusts up to 20 mph. Chance of rain 30 percent. .TONIGHT...Mostly cloudy. A chance of showers after midnight. Breezy with lows in the lower 50s. Southeast winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 30 percent. .MONDAY...Partly cloudy in the morning, then becoming mostly cloudy. A chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 60s. South winds around 10 mph, becoming southwest in the afternoon. Chance of rain 40 percent. .MONDAY NIGHT...A slight chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the mid 40s. Southwest winds around 10 mph in the evening. Chance of rain 30 percent. .TUESDAY...Mostly cloudy in the morning, then becoming partly cloudy. Highs around 60. .TUESDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 40s. .WEDNESDAY...Mostly sunny. Highs in the lower 60s. .WEDNESDAY NIGHT...Mostly clear. Lows around 40. .THURSDAY...Mostly sunny. Highs around 60. .THURSDAY NIGHT...Clear. Lows in the lower 40s. .FRIDAY...Mostly sunny. Highs in the upper 60s. .FRIDAY NIGHT...Mostly clear. Lows in the mid 40s. .SATURDAY...Partly cloudy in the morning, then clearing. Highs in the mid 60s. $$ WYZ002-272300- Absaroka Mountains- 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Mostly cloudy with a slight chance of showers and thunderstorms. Near steady temperature in the mid 50s. South winds around 10 mph with gusts up to 20 mph. Chance of rain 20 percent. .TONIGHT...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then showers after midnight. Lows around 40. Southwest winds around 10 mph with gusts up to 25 mph. Chance of rain 80 percent. .MONDAY...Partly cloudy. Rain showers in the morning, then rain showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 50s. West winds around 10 mph. Chance of rain 80 percent. .MONDAY NIGHT...Mostly cloudy with a chance of rain showers with a slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 30s. West winds around 10 mph. Chance of rain 30 percent. .TUESDAY...Mostly sunny. Highs in the mid 50s. West winds around 10 mph with gusts up to 25 mph. .TUESDAY NIGHT...Clear. Lows in the mid 30s. .WEDNESDAY...Sunny. Highs in the mid 50s. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 30s. .THURSDAY...Mostly sunny. Highs in the mid 50s. .THURSDAY NIGHT...Mostly clear. Lows in the upper 30s. .FRIDAY...Mostly sunny. Highs in the upper 50s. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 30s. .SATURDAY...Partly cloudy in the morning, then clearing. A slight chance of. Highs in the mid 50s. $$ WYZ007-272300- Owl Creek and Bridger Mountains- 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Cloudy. Near steady temperature in the mid 60s. Southeast winds around 10 mph with gusts up to 20 mph. .TONIGHT...A slight chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the lower 50s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 30 percent. .MONDAY...Mostly cloudy with showers likely in the morning, then partly cloudy with a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Southwest winds around 10 mph. Chance of rain 60 percent. .MONDAY 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. West winds around 10 mph in the evening. Chance of rain 30 percent. .TUESDAY...Mostly sunny. Highs in the mid 60s. South winds around 10 mph in the afternoon. .TUESDAY NIGHT...Clear. Lows in the upper 40s. .WEDNESDAY...Sunny. Highs in the mid 60s. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 40s. .THURSDAY...Mostly sunny. Highs in the lower 60s. .THURSDAY NIGHT...Clear. Lows in the mid 40s. .FRIDAY...Mostly sunny. Highs in the upper 60s. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 40s. .SATURDAY...Partly cloudy in the morning, then clearing. Highs in the mid 60s. $$ WYZ008-272300- Bighorn Mountains West- 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Partly cloudy. Near steady temperature in the lower 60s. South winds around 10 mph with gusts up to 30 mph. .TONIGHT...Mostly cloudy with a 30 percent chance of rain showers. Lows in the upper 40s. Southeast winds 10 to 15 mph with gusts up to 30 mph. .MONDAY...Partly cloudy. Rain showers likely in the morning, then a chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Southwest winds around 10 mph. Chance of rain 60 percent. .MONDAY NIGHT...Mostly cloudy with a chance of rain showers in the evening, then partly cloudy after midnight. Lows in the lower 40s. Chance of rain 30 percent. .TUESDAY...Mostly sunny. Highs in the upper 50s. South winds around 10 mph, becoming west with gusts up to 20 mph in the afternoon. .TUESDAY NIGHT...Clear. Lows in the lower 40s. .WEDNESDAY...Sunny. Highs around 60. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 40. .THURSDAY...Mostly sunny. Highs in the mid 50s. .THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. .FRIDAY...Mostly sunny. Highs in the lower 60s. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 40s. .SATURDAY...Partly cloudy in the morning, then clearing. Highs in the upper 50s. $$ WYZ009-272300- Bighorn Mountains Southeast- 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Partly cloudy. Near steady temperature in the upper 50s. Southeast winds around 10 mph with gusts up to 25 mph. .TONIGHT...A slight chance of thunderstorms in the evening. Mostly cloudy with a chance of rain showers. Lows in the upper 40s. South winds 10 to 15 mph, becoming west after midnight. Gusts up to 35 mph. Chance of rain 40 percent. .MONDAY...Partly cloudy in the morning, then becoming mostly cloudy. Rain showers likely. A slight chance of thunderstorms in the afternoon. Highs around 60. West winds 10 to 15 mph with gusts up to 25 mph, becoming southwest in the afternoon. Chance of rain 60 percent. .MONDAY NIGHT...Mostly cloudy with a chance of rain showers in the evening, then partly cloudy after midnight. Lows around 40. Chance of rain 30 percent. .TUESDAY...Partly cloudy in the morning, then clearing. Highs around 60. West winds around 10 mph. .TUESDAY NIGHT...Mostly clear. Lows in the lower 40s. .WEDNESDAY...Mostly sunny. Highs in the upper 50s. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 30s. .THURSDAY...Partly cloudy in the morning, then clearing. Highs in the upper 50s. .THURSDAY NIGHT...Mostly clear. Lows around 40. .FRIDAY...Mostly sunny. Highs in the lower 60s. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 40s. .SATURDAY...Partly cloudy in the morning, then clearing. A slight chance of. Highs in the upper 50s. $$ WYZ012-272300- Teton and Gros Ventre Mountains- 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Mostly cloudy. Highs in the lower 60s. Southwest winds around 10 mph with gusts up to 20 mph. .TONIGHT...Mostly cloudy. Showers likely in the evening, then showers with a slight chance of thunderstorms after midnight. Lows in the upper 30s. South winds around 10 mph, becoming southeast after midnight. Gusts up to 25 mph. Chance of rain 80 percent. .MONDAY...Partly cloudy. Rain showers with a slight chance of thunderstorms in the morning, then rain showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 50s. Chance of rain 80 percent. .MONDAY NIGHT...Partly cloudy with a chance of rain showers with a slight chance of thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 30s. Chance of rain 30 percent. .TUESDAY...Mostly sunny. Highs in the mid 50s. Northwest winds around 10 mph in the afternoon. .TUESDAY NIGHT...Clear. Lows in the mid 30s. .WEDNESDAY...Sunny. Highs in the upper 50s. .WEDNESDAY NIGHT...Clear. Lows in the mid 30s. .THURSDAY...Sunny. Highs in the upper 50s. .THURSDAY NIGHT...Clear. Lows in the upper 30s. .FRIDAY...Mostly sunny. Highs in the upper 50s. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 30s. .SATURDAY...Partly cloudy in the morning, then clearing. Highs in the upper 50s. $$ WYZ014-272300- Wind River Mountains West- 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Partly cloudy with a chance of showers with a slight chance of thunderstorms. Near steady temperature in the upper 50s. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 30 percent. .TONIGHT...Rain showers with a slight chance of thunderstorms. Snow showers after midnight. Snow accumulation up to 1 inch. Lows in the upper 30s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 90 percent. .MONDAY...Mostly cloudy. Rain showers with possible snow showers and thunderstorms likely in the morning, then rain showers likely with a chance of thunderstorms in the afternoon. Snow accumulation up to 1 inch. Highs in the lower 50s. Southwest winds around 10 mph. Chance of precipitation 80 percent. .MONDAY NIGHT...Mostly cloudy with a chance of rain showers with a slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 30s. Chance of rain 30 percent. .TUESDAY...Partly cloudy in the morning, then clearing. Highs in the mid 50s. West winds around 10 mph in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows in the mid 30s. .WEDNESDAY...Sunny. Highs in the upper 50s. .WEDNESDAY NIGHT...Clear. Lows in the mid 30s. .THURSDAY...Sunny. Highs in the mid 50s. .THURSDAY NIGHT...Clear. Lows in the mid 30s. .FRIDAY...Mostly sunny. Highs in the upper 50s. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 30s. .SATURDAY...Partly cloudy. Highs in the upper 50s. $$ WYZ015-272300- Wind River Mountains East- 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Mostly sunny with a chance of showers with a slight chance of thunderstorms. Near steady temperature in the mid 50s. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 30 percent. .TONIGHT...Rain showers with a slight chance of thunderstorms. Snow showers after midnight. Snow accumulation up to 2 inches. Lows in the upper 30s. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation 80 percent. .MONDAY...Rain showers. Snow showers with a slight chance of thunderstorms in the morning, then a chance of thunderstorms and snow showers in the afternoon. Snow accumulation up to 1 inch. Highs around 50. Southwest winds around 10 mph with gusts up to 25 mph in the morning. Chance of precipitation 80 percent. .MONDAY NIGHT...Mostly cloudy with a chance of rain showers, snow showers with a slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 30s. Chance of precipitation 30 percent. .TUESDAY...Partly cloudy in the morning, then clearing. Highs in the lower 50s. North winds around 10 mph in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows in the mid 30s. .WEDNESDAY...Sunny. Highs in the mid 50s. .WEDNESDAY NIGHT...Clear. Lows in the mid 30s. .THURSDAY...Mostly sunny. Highs in the mid 50s. .THURSDAY NIGHT...Mostly clear. Lows in the upper 30s. .FRIDAY...Mostly sunny. Highs in the upper 50s. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 30s. .SATURDAY...Partly cloudy. Highs in the mid 50s. $$ WYZ019-272300- Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Cloudy. Near steady temperature around 70. South winds 10 to 15 mph with gusts up to 25 mph. .TONIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A slight chance of thunderstorms in the evening. A chance of showers. Lows in the upper 40s. Southwest winds 10 to 15 mph. Gusts up to 30 mph in the evening. Chance of rain 30 percent. .MONDAY...Partly cloudy in the morning, then becoming mostly cloudy. A chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Southwest winds around 10 mph with gusts up to 20 mph. Chance of rain 30 percent. .MONDAY NIGHT...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Lows in the lower 40s. Southwest winds around 10 mph in the evening. Chance of rain 30 percent. .TUESDAY...Partly cloudy. Highs in the mid 60s. .TUESDAY NIGHT...Mostly clear. Lows in the lower 40s. .WEDNESDAY...Mostly sunny. Highs in the upper 60s. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 40s. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. .FRIDAY...Mostly sunny. Highs in the lower 70s. .FRIDAY NIGHT...Mostly clear. Lows in the mid 40s. .SATURDAY...Partly cloudy in the morning, then clearing. Highs in the upper 60s. $$ WYZ024-272300- Salt River and Wyoming Ranges- 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Partly cloudy. Highs in the mid 60s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .TONIGHT...Mostly cloudy with a slight chance of thunderstorms. Showers. Lows in the lower 40s. South winds around 10 mph with gusts up to 25 mph. Chance of rain 80 percent. .MONDAY...Showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the mid 50s. South winds around 10 mph with gusts up to 20 mph in the morning. Chance of rain 80 percent. .MONDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 30s. Northwest winds around 10 mph. .TUESDAY...Partly cloudy in the morning, then clearing. Highs in the upper 50s. Northwest winds around 10 mph with gusts up to 20 mph in the afternoon. .TUESDAY NIGHT...Clear. Lows in the mid 30s. .WEDNESDAY...Sunny. Highs around 60. .WEDNESDAY NIGHT...Clear. Lows in the upper 30s. .THURSDAY...Sunny. Highs in the lower 60s. .THURSDAY NIGHT...Clear. Lows in the upper 30s. .FRIDAY...Sunny. Highs in the lower 60s. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 40. .SATURDAY...Partly cloudy in the morning, then clearing. Highs in the lower 60s. $$ WYZ030-272300- East Sweetwater County- Including the city of Wamsutter 347 PM MDT Sun Sep 27 2026 .THIS AFTERNOON...Cloudy. Highs in the lower 70s. South winds 10 to 15 mph with gusts up to 30 mph. .TONIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A slight chance of thunderstorms in the evening. A chance of showers. Lows in the upper 40s. Southwest winds 10 to 15 mph with gusts up to 25 mph in the evening. Chance of rain 30 percent. .MONDAY...Mostly cloudy with showers likely. A slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Southwest winds around 10 mph in the afternoon. Chance of rain 60 percent. .MONDAY NIGHT...A slight chance of thunderstorms in the evening. Cloudy with a chance of showers. Lows in the lower 40s. Southwest winds around 10 mph in the evening. Chance of rain 30 percent. .TUESDAY...Mostly cloudy in the morning, then becoming partly cloudy. Highs in the mid 60s. North winds around 10 mph. .TUESDAY NIGHT...Partly cloudy in the evening, then clearing. Lows around 40. .WEDNESDAY...Mostly sunny. Highs in the upper 60s. .WEDNESDAY NIGHT...Clear. Lows around 40. .THURSDAY...Sunny. Highs in the mid 60s. .THURSDAY NIGHT...Clear. Lows around 40. .FRIDAY...Mostly sunny. Highs around 70. .FRIDAY NIGHT...Mostly clear. Lows in the mid 40s. .SATURDAY...Partly cloudy in the morning, then clearing. Highs around 70. $$