Zone Forecast Product
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
978 FPUS55 KRIW 200319 ZFPRIW Zone Forecast Product for Western and Central Wyoming National Weather Service Riverton WY 917 PM MDT Sat Sep 19 2026 WYZ020-201000- Natrona County Lower Elevations- Including the city of Casper 917 PM MDT Sat Sep 19 2026 .TONIGHT...Showers with a chance of thunderstorms late this evening, then showers likely with a chance of thunderstorms after midnight. Some thunderstorms may produce heavy rainfall after midnight. Lows in the mid 40s. North winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 80 percent. .SUNDAY...Mostly cloudy with showers likely. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Highs in the lower 60s. West winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 60 percent. .SUNDAY NIGHT...Mostly cloudy. Lows around 40. North winds around 10 mph with gusts up to 20 mph in the evening. .MONDAY...Partly cloudy in the morning, then clearing. Highs in the upper 60s. .MONDAY NIGHT...Mostly clear. Lows in the lower 40s. Southeast winds around 10 mph, becoming south after midnight. Gusts up to 25 mph. .TUESDAY...Mostly sunny. Highs in the mid 70s. .TUESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. A slight chance of thunderstorms in the evening. A slight chance of showers. Lows around 50. Chance of rain 20 percent. .WEDNESDAY...Partly cloudy and breezy. Highs in the mid 70s. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. .THURSDAY...Sunny. Highs in the upper 70s. .THURSDAY NIGHT...Mostly clear. Lows around 50. .FRIDAY...Partly cloudy in the morning, then clearing. Highs in the upper 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 upper 70s. $$ WYZ017-201000- Wind River Basin- Including the cities of Riverton and Shoshoni 917 PM MDT Sat Sep 19 2026 .TONIGHT...Showers with a slight chance of thunderstorms late this evening, then showers likely with a slight chance of thunderstorms after midnight. Areas of fog after midnight. Some thunderstorms may produce heavy rainfall after midnight. Lows in the upper 40s. Northwest winds 10 to 15 mph. Gusts up to 30 mph late this evening. Chance of rain 80 percent. .SUNDAY...Mostly cloudy in the morning, then becoming partly cloudy. Areas of fog in the morning. A chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 60s. West winds around 10 mph, becoming north in the afternoon. Chance of rain 30 percent. .SUNDAY NIGHT...Partly cloudy. Lows in the mid 40s. .MONDAY...Partly cloudy in the morning, then clearing. Highs in the upper 60s. .MONDAY NIGHT...Mostly clear. Lows in the mid 40s. .TUESDAY...Mostly sunny. Highs in the mid 70s. .TUESDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a slight chance of showers. Lows around 50. Chance of rain 20 percent. .WEDNESDAY...Partly cloudy in the morning, then clearing. Highs in the mid 70s. .WEDNESDAY NIGHT...Mostly clear. Lows around 50. .THURSDAY...Sunny. Highs in the upper 70s. .THURSDAY NIGHT...Mostly clear. Lows around 50. .FRIDAY...Partly cloudy in the morning, then clearing. Highs in the upper 70s. .FRIDAY NIGHT...Mostly clear. Lows around 50. .SATURDAY...Partly cloudy in the morning, then clearing. A slight chance of. Highs in the upper 70s. $$ WYZ018-201000- Lander Foothills- Including the city of Lander 917 PM MDT Sat Sep 19 2026 .TONIGHT...Showers with a slight chance of thunderstorms late this evening, then showers likely with a slight chance of thunderstorms after midnight. Areas of fog after midnight. Some thunderstorms may produce heavy rainfall after midnight. Lows in the mid 40s. West winds around 10 mph. Chance of rain 80 percent. .SUNDAY...Areas of fog in the morning. Partly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 30 percent. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 40s. .MONDAY...Mostly sunny. Highs in the upper 60s. .MONDAY NIGHT...Mostly clear. Lows in the mid 40s. .TUESDAY...Mostly sunny. Highs in the mid 70s. .TUESDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a slight chance of showers. Lows in the upper 40s. Chance of rain 20 percent. .WEDNESDAY...Partly cloudy in the morning, then clearing. Highs in the mid 70s. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. .THURSDAY...Sunny. Highs in the upper 70s. .THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. .FRIDAY...Partly cloudy in the morning, then clearing. Highs in the upper 70s. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows around 50. .SATURDAY...Partly cloudy in the morning, then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 20 percent. $$ WYZ028-201000- Rock Springs and Green River- Including the cities of Rock Springs and Green River 917 PM MDT Sat Sep 19 2026 .TONIGHT...Partly cloudy. Lows in the upper 30s. West winds around 10 mph. .SUNDAY...Mostly sunny. Highs in the mid 60s. West winds around 10 mph. .SUNDAY NIGHT...Mostly clear. Lows in the mid 30s. .MONDAY...Partly cloudy in the morning, then clearing. Highs in the upper 60s. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 40. .TUESDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs around 70. Chance of rain 30 percent. .TUESDAY NIGHT...A slight chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows around 40. Chance of rain 40 percent. .WEDNESDAY...Partly cloudy in the morning, then clearing. A slight chance of. Highs around 70. .WEDNESDAY NIGHT...Mostly clear. Lows around 40. .THURSDAY...Mostly sunny. Highs in the lower 70s. .THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. .FRIDAY...Partly cloudy in the morning, then clearing. A slight chance of. Highs in the mid 70s. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. .SATURDAY...Partly cloudy in the morning, then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 20 percent. $$ WYZ013-201000- Jackson Hole- Including the city of Jackson 917 PM MDT Sat Sep 19 2026 .TONIGHT...Mostly cloudy. Areas of fog. Lows in the mid 30s. .SUNDAY...Partly cloudy. Areas of fog in the morning. A slight chance of. A slight chance of. Highs around 60. .SUNDAY NIGHT...Partly cloudy. Lows in the mid 30s. .MONDAY...Mostly sunny. Highs in the upper 60s. .MONDAY NIGHT...Mostly clear. Lows in the upper 30s. .TUESDAY...Partly cloudy. Highs in the lower 70s. .TUESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the lower 40s. Chance of rain 30 percent. .WEDNESDAY...Partly cloudy with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 20 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 30s. .THURSDAY...Sunny. Highs in the lower 70s. .THURSDAY NIGHT...Mostly clear. Lows around 40. .FRIDAY...Partly cloudy in the morning, then clearing. Highs in the lower 70s. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. .SATURDAY...Partly cloudy with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 20 percent. $$ WYZ003-201000- Cody Foothills- Including the cities of Clark, Cody, and Meeteetse 917 PM MDT Sat Sep 19 2026 ...FLOOD WATCH IN EFFECT THROUGH SUNDAY AFTERNOON... .TONIGHT...Cloudy. Areas of fog after midnight. Near steady temperature in the upper 40s. North winds 10 to 15 mph with gusts up to 30 mph. .SUNDAY...Mostly cloudy. Highs around 60. North winds around 10 mph in the afternoon. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 40s. Northwest winds around 10 mph in the evening. .MONDAY...Mostly sunny. Highs in the mid 60s. East winds around 10 mph with gusts up to 20 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows in the mid 40s. South winds around 10 mph, becoming southwest after midnight. .TUESDAY...Mostly sunny. Highs in the lower 70s. .TUESDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows in the lower 50s. Chance of rain 20 percent. .WEDNESDAY...Mostly cloudy in the morning, then becoming partly cloudy. Highs in the lower 70s. .WEDNESDAY NIGHT...Mostly clear. Lows around 50. .THURSDAY...Sunny. Highs in the mid 70s. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s. .FRIDAY...Partly cloudy in the morning, then clearing. Highs in the mid 70s. .FRIDAY NIGHT...Partly cloudy. Lows around 50. .SATURDAY...Partly cloudy. A slight chance of. Highs in the lower 70s. $$ WYZ004-201000- North Bighorn Basin- Including the cities of Basin, Greybull, Lovell, Powell, and Shell 917 PM MDT Sat Sep 19 2026 .TONIGHT...A slight chance of thunderstorms late this evening. Cloudy with showers likely. Breezy with lows in the upper 40s. Northwest winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 60 percent. .SUNDAY...Mostly cloudy. Showers likely in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Northwest winds 10 to 15 mph. Gusts up to 30 mph in the morning. Chance of rain 60 percent. .SUNDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 40s. Northwest winds around 10 mph with gusts up to 20 mph in the evening. .MONDAY...Partly cloudy in the morning, then clearing. Highs around 70. Southeast winds around 10 mph in the afternoon. .MONDAY NIGHT...Clear. Lows in the mid 40s. .TUESDAY...Mostly sunny. Highs in the upper 70s. .TUESDAY NIGHT...Mostly clear in the evening, then partly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Lows around 50. Chance of rain 30 percent. .WEDNESDAY...Mostly cloudy in the morning, then becoming partly cloudy. Highs in the upper 70s. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. .THURSDAY...Sunny. Highs around 80. .THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. .FRIDAY...Mostly sunny. Highs around 80. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 50. .SATURDAY...Partly cloudy. Highs in the upper 70s. $$ WYZ006-201000- Southeast Bighorn Basin- Including the cities of Ten Sleep and Worland 917 PM MDT Sat Sep 19 2026 .TONIGHT...A slight chance of thunderstorms late this evening. Cloudy with showers. Lows in the upper 40s. Northwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 80 percent. .SUNDAY...Cloudy. Showers likely in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Northwest winds 10 to 15 mph. Chance of rain 60 percent. .SUNDAY NIGHT...Mostly cloudy. Lows in the mid 40s. .MONDAY...Partly cloudy in the morning, then clearing. Highs around 70. .MONDAY NIGHT...Clear. Lows in the mid 40s. .TUESDAY...Mostly sunny. Highs in the upper 70s. .TUESDAY NIGHT...Partly cloudy. A slight chance of showers after midnight. Lows in the lower 50s. Chance of rain 20 percent. .WEDNESDAY...Partly cloudy. A slight chance of showers in the morning. Highs in the upper 70s. Chance of rain 20 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. .THURSDAY...Sunny. Highs in the lower 80s. .THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. .FRIDAY...Mostly sunny. Highs in the lower 80s. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s. .SATURDAY...Partly cloudy in the morning, then clearing. Highs in the upper 70s. $$ WYZ005-201000- Southwest Bighorn Basin- Including the city of Thermopolis 917 PM MDT Sat Sep 19 2026 .TONIGHT...Cloudy. Showers likely with a slight chance of thunderstorms late this evening, then showers after midnight. Lows in the upper 40s. Northwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 80 percent. .SUNDAY...Mostly cloudy. Showers likely in the morning. Areas of fog in the morning. Highs in the lower 60s. Northwest winds around 10 mph. Chance of rain 60 percent. .SUNDAY NIGHT...Partly cloudy. Lows in the mid 40s. .MONDAY...Mostly sunny. Highs around 70. .MONDAY NIGHT...Clear. Lows in the mid 40s. .TUESDAY...Mostly sunny. Highs in the mid 70s. .TUESDAY NIGHT...Partly cloudy. A slight chance of showers after midnight. Lows in the lower 50s. Chance of rain 20 percent. .WEDNESDAY...Partly cloudy in the morning, then clearing. Highs in the mid 70s. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. .THURSDAY...Sunny. Highs around 80. .THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. .FRIDAY...Mostly sunny. Highs around 80. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s. .SATURDAY...Partly cloudy. A slight chance of. Highs in the upper 70s. $$ WYZ023-201000- Star Valley- Including the cities of Afton, Alpine, Star Valley Ranch, and Thayne 917 PM MDT Sat Sep 19 2026 .TONIGHT...Mostly cloudy late this evening, then becoming partly cloudy. A chance of showers late this evening. Areas of fog. Lows in the mid 30s. Chance of rain 30 percent. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Areas of fog in the morning. Highs in the lower 60s. .SUNDAY NIGHT...Mostly clear. Lows in the mid 30s. .MONDAY...Sunny. Highs around 70. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 30s. .TUESDAY...Partly cloudy. A slight chance of. Highs in the lower 70s. .TUESDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the lower 40s. Chance of rain 40 percent. .WEDNESDAY...Partly cloudy with a chance of showers in the morning, then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs around 70. Chance of rain 30 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 30s. .THURSDAY...Sunny. Highs in the mid 70s. .THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. .FRIDAY...Mostly sunny. Highs in the mid 70s. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. .SATURDAY...Partly cloudy with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 20 percent. $$ WYZ025-201000- Upper Green River Basin Foothills- Including the city of Pinedale 917 PM MDT Sat Sep 19 2026 .TONIGHT...Cloudy late this evening, then becoming partly cloudy. A slight chance of thunderstorms late this evening. A chance of rain showers. Areas of fog after midnight. Lows in the mid 30s. Chance of rain 30 percent. .SUNDAY...Areas of fog in the morning. Partly cloudy. Highs around 60. Northwest winds around 10 mph with gusts up to 20 mph in the afternoon. .SUNDAY NIGHT...Mostly clear. Lows in the lower 30s. Northwest winds around 10 mph with gusts up to 20 mph in the evening. .MONDAY...Mostly sunny. Highs in the mid 60s. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 30s. .TUESDAY...Partly cloudy. Highs in the upper 60s. .TUESDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows around 40. Chance of rain 40 percent. .WEDNESDAY...Mostly cloudy in the morning, then clearing. A slight chance of showers. A slight chance of 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. Highs around 70. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 30s. .FRIDAY...Mostly sunny. A slight chance of. Highs around 70. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 30s. .SATURDAY...Partly cloudy. A slight chance of rain showers and thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 20 percent. $$ WYZ026-201000- Upper Green River Basin- Including the cities of La Barge, Big Piney, and Farson 917 PM MDT Sat Sep 19 2026 .TONIGHT...Cloudy late this evening, then becoming partly cloudy. A slight chance of thunderstorms late this evening. A chance of rain showers. Areas of fog after midnight. Lows in the mid 30s. Northwest winds around 10 mph late this evening. Chance of rain 30 percent. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Areas of fog in the morning. Highs in the lower 60s. West winds around 10 mph with gusts up to 20 mph in the afternoon. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 30s. .MONDAY...Mostly sunny. Highs in the mid 60s. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 30s. .TUESDAY...Partly cloudy. Highs in the upper 60s. .TUESDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows around 40. Chance of rain 30 percent. .WEDNESDAY...Partly cloudy in the morning, then clearing. Highs around 70. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 30s. .THURSDAY...Sunny. Highs around 70. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 40. .FRIDAY...Partly cloudy in the morning, then clearing. Highs around 70. .FRIDAY NIGHT...Partly cloudy. Lows around 40. .SATURDAY...Partly cloudy in the morning, then mostly sunny with a slight chance of rain showers and thunderstorms in the afternoon. Highs around 70. Chance of rain 20 percent. $$ WYZ010-201000- Northeast Johnson County- Including the city of Buffalo 917 PM MDT Sat Sep 19 2026 ...FLOOD WATCH IN EFFECT THROUGH SUNDAY AFTERNOON... .TONIGHT...Mostly cloudy with a slight chance of thunderstorms. A chance of showers late this evening, then showers likely after midnight. Some thunderstorms may produce heavy rainfall. Near steady temperature in the lower 50s. Northwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 60 percent. .SUNDAY...Showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Some thunderstorms may produce heavy rainfall in the afternoon. Highs around 60. Northwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 80 percent. .SUNDAY NIGHT...Cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Lows around 50. Northwest winds 10 to 15 mph with gusts up to 25 mph in the evening. Chance of rain 30 percent. .MONDAY...Mostly cloudy in the morning, then clearing. Highs in the upper 60s. South winds around 10 mph. .MONDAY NIGHT...Mostly clear. Lows around 50. South winds 10 to 15 mph with gusts up to 30 mph. .TUESDAY...Mostly sunny. Highs in the mid 70s. .TUESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. A slight chance of. Lows in the lower 50s. .WEDNESDAY...Partly cloudy in the morning, then clearing. Highs in the upper 70s. .WEDNESDAY NIGHT...Mostly clear. Lows around 50. .THURSDAY...Sunny. Highs around 80. .THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. .FRIDAY...Partly cloudy in the morning, then clearing. Breezy with highs around 80. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s. .SATURDAY...Partly cloudy in the morning, then clearing. A slight chance of. Highs in the mid 70s. $$ WYZ011-201000- Southeast Johnson County- Including the city of Kaycee 917 PM MDT Sat Sep 19 2026 ...FLOOD WATCH IN EFFECT THROUGH SUNDAY AFTERNOON... .TONIGHT...Showers with a slight chance of thunderstorms late this evening, then showers likely with a chance of thunderstorms after midnight. Some thunderstorms may produce heavy rainfall late this evening. Some thunderstorms may produce heavy rainfall after midnight. Lows in the upper 40s. North winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 80 percent. .SUNDAY...Showers likely with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Some thunderstorms may produce heavy rainfall in the afternoon. Highs in the lower 60s. North winds around 10 mph with gusts up to 25 mph. Chance of rain 90 percent. .SUNDAY NIGHT...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Lows in the mid 40s. North winds around 10 mph with gusts up to 20 mph in the evening. Chance of rain 30 percent. .MONDAY...Partly cloudy in the morning, then clearing. Highs in the upper 60s. .MONDAY NIGHT...Mostly clear. Lows in the mid 40s. South winds 10 to 15 mph with gusts up to 35 mph. .TUESDAY...Mostly sunny. Highs in the upper 70s. .TUESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s. .WEDNESDAY...Partly cloudy in the morning, then clearing. Highs in the upper 70s. .WEDNESDAY NIGHT...Mostly clear. Lows around 50. .THURSDAY...Sunny. Highs in the lower 80s. .THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. .FRIDAY...Partly cloudy in the morning, then clearing. Breezy with highs in the lower 80s. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s. .SATURDAY...Partly cloudy in the morning, then clearing. A slight chance of. Highs in the upper 70s. $$ WYZ027-201000- South Lincoln County- Including the cities of Kemmerer and Cokeville 917 PM MDT Sat Sep 19 2026 .TONIGHT...Mostly cloudy late this evening, then clearing. Lows in the upper 30s. Northwest winds around 10 mph. .SUNDAY...Areas of fog in the morning. Mostly sunny. Highs in the lower 60s. West winds around 10 mph. .SUNDAY NIGHT...Mostly clear. Lows in the mid 30s. Northwest winds around 10 mph in the evening. .MONDAY...Mostly sunny. Highs in the mid 60s. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 30s. .TUESDAY...Partly cloudy. A chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs around 70. Chance of rain 30 percent. .TUESDAY NIGHT...A slight chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows around 40. Chance of rain 30 percent. .WEDNESDAY...Partly cloudy in the morning, then clearing. Highs around 70. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 30s. .THURSDAY...Sunny. Highs around 70. .THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. .FRIDAY...Partly cloudy in the morning, then clearing. Highs in the lower 70s. .FRIDAY NIGHT...Partly cloudy. Lows around 40. .SATURDAY...Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Highs around 70. Chance of rain 20 percent. $$ WYZ016-201000- Upper Wind River Basin- Including the city of Dubois 917 PM MDT Sat Sep 19 2026 .TONIGHT...Rain showers with a slight chance of thunderstorms late this evening, then rain showers likely with a slight chance of thunderstorms after midnight. Areas of fog after midnight. Some thunderstorms may produce heavy rainfall after midnight. Lows around 40. Chance of rain 60 percent. .SUNDAY...Areas of fog in the morning. Partly cloudy with a chance of rain showers. A slight chance of thunderstorms in the afternoon. Highs around 60. Southeast winds around 10 mph with gusts up to 20 mph in the afternoon. Chance of rain 30 percent. .SUNDAY NIGHT...Mostly cloudy with a chance of rain showers with a slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows around 40. Southeast winds around 10 mph in the evening. Chance of rain 30 percent. .MONDAY...Mostly sunny. Highs in the lower 60s. Southeast winds around 10 mph with gusts up to 20 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows around 40. South winds around 10 mph with gusts up to 20 mph, becoming west after midnight. .TUESDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 60s. .TUESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms in the evening. A chance of showers. Lows in the mid 40s. Chance of rain 30 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 upper 60s. Chance of rain 20 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 40s. .THURSDAY...Sunny. Highs around 70. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 40s. .FRIDAY...Mostly sunny. Highs around 70. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. .SATURDAY...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. $$ WYZ001-201000- Yellowstone National Park- Including the cities of Lake, Mammoth, and Old Faithful 917 PM MDT Sat Sep 19 2026 ...FLOOD WATCH IN EFFECT THROUGH SUNDAY AFTERNOON... .TONIGHT...A slight chance of thunderstorms late this evening. Mostly cloudy with a chance of rain showers. Areas of fog. Some thunderstorms may produce heavy rainfall late this evening. Lows in the mid 30s. Chance of rain 30 percent. .SUNDAY...Areas of fog in the morning. Mostly cloudy with a chance of rain showers. A slight chance of thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the afternoon. Highs in the lower 50s. Chance of rain 30 percent. .SUNDAY NIGHT...Partly cloudy. Lows in the lower 30s. .MONDAY...Partly cloudy in the morning, then clearing. Highs in the lower 60s. .MONDAY NIGHT...Mostly clear. Lows in the mid 30s. .TUESDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the mid 60s. .TUESDAY NIGHT...Partly cloudy with a slight chance of thunderstorms. A chance of rain showers after midnight. Lows in the upper 30s. Chance of rain 30 percent. .WEDNESDAY...Partly cloudy. A chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 30 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 30s. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly clear. Lows in the upper 30s. .FRIDAY...Partly cloudy in the morning, then clearing. Highs in the mid 60s. .FRIDAY NIGHT...Partly cloudy. Lows around 40. .SATURDAY...Partly cloudy. A slight chance of rain showers and thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 20 percent. $$ WYZ029-201000- Flaming Gorge- 917 PM MDT Sat Sep 19 2026 .TONIGHT...Partly cloudy late this evening, then clearing. Lows in the lower 40s. West winds around 10 mph late this evening. .SUNDAY...Mostly sunny. Highs in the mid 60s. West winds around 10 mph. .SUNDAY NIGHT...Mostly clear. Lows around 40. .MONDAY...Mostly sunny. Highs in the upper 60s. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 40s. .TUESDAY...Partly cloudy. A slight chance of. Highs in the lower 70s. .TUESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms in the evening. A chance of showers. Lows in the mid 40s. Chance of rain 40 percent. .WEDNESDAY...Partly cloudy in the morning, then clearing. A slight chance of. Highs in the upper 60s. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 40s. .THURSDAY...Mostly sunny. Highs in the lower 70s. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 40s. .FRIDAY...Partly cloudy in the morning, then clearing. A slight chance of. Highs in the lower 70s. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. .SATURDAY...Partly cloudy in the morning, then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 20 percent. $$ WYZ022-201000- Casper Mountain- 917 PM MDT Sat Sep 19 2026 .TONIGHT...Showers likely. A chance of thunderstorms. Some thunderstorms may produce heavy rainfall after midnight. Lows in the lower 40s. Northwest winds around 10 mph. Chance of rain 70 percent. .SUNDAY...Showers likely. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Highs in the mid 50s. West winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent. .SUNDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 30s. Northwest winds around 10 mph with gusts up to 20 mph in the evening. .MONDAY...Partly cloudy in the morning, then clearing. Highs in the lower 60s. .MONDAY NIGHT...Mostly clear. Lows in the lower 40s. Southeast winds around 10 mph with gusts up to 25 mph. .TUESDAY...Mostly sunny. Highs in the upper 60s. .TUESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 40s. .WEDNESDAY...Mostly cloudy in the morning, then becoming partly cloudy. Highs in the upper 60s. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 40s. .THURSDAY...Sunny. Highs in the lower 70s. .THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. .FRIDAY...Partly cloudy in the morning, then clearing. Highs in the lower 70s. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. A slight chance of showers. Lows in the upper 40s. Chance of rain 20 percent. .SATURDAY...Partly cloudy in the morning, then clearing. Highs around 70. $$ WYZ002-201000- Absaroka Mountains- 917 PM MDT Sat Sep 19 2026 ...FLOOD WATCH IN EFFECT THROUGH SUNDAY AFTERNOON... .TONIGHT...Cloudy with rain showers likely. A chance of snow showers with a slight chance of thunderstorms late this evening, then snow showers likely after midnight. Patchy fog after midnight. Some thunderstorms may produce heavy rainfall late this evening. Little or no snow accumulation. Lows in the mid 30s. Chance of precipitation 60 percent. .SUNDAY...Mostly cloudy. Rain showers likely with a slight chance of thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the afternoon. Highs around 50. Northwest winds around 10 mph. Chance of rain 60 percent. .SUNDAY 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 in the evening. Chance of rain 30 percent. .MONDAY...Mostly sunny. Highs in the mid 50s. Southwest winds around 10 mph with gusts up to 20 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows in the upper 30s. Southwest winds around 10 mph. .TUESDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 50s. .TUESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of rain showers with a slight chance of thunderstorms. Lows in the lower 40s. Chance of rain 30 percent. .WEDNESDAY...Mostly cloudy in the morning, then becoming partly cloudy. A chance of rain showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Chance of rain 30 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 30s. .THURSDAY...Sunny. Highs in the lower 60s. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 40s. .FRIDAY...Partly cloudy in the morning, then clearing. Highs in the lower 60s. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. .SATURDAY...Partly cloudy. A slight chance of rain showers and thunderstorms in the afternoon. Highs in the upper 50s. Chance of rain 20 percent. $$ WYZ007-201000- Owl Creek and Bridger Mountains- 917 PM MDT Sat Sep 19 2026 ...FLOOD WATCH IN EFFECT THROUGH SUNDAY AFTERNOON... .TONIGHT...Showers with a slight chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Breezy with lows in the mid 40s. North winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 80 percent. .SUNDAY...Mostly cloudy. Showers likely in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the afternoon. Highs in the upper 50s. North winds 10 to 15 mph. Chance of rain 60 percent. .SUNDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 40s. North winds around 10 mph in the evening. .MONDAY...Mostly sunny. Highs in the lower 60s. South winds around 10 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows in the mid 40s. Southeast winds around 10 mph, becoming southwest after midnight. .TUESDAY...Mostly sunny. Highs around 70. .TUESDAY NIGHT...Partly cloudy with a slight chance of showers. Lows in the lower 50s. Chance of rain 20 percent. .WEDNESDAY...Partly cloudy in the morning, then clearing. Highs in the lower 70s. .WEDNESDAY NIGHT...Mostly clear. Lows around 50. .THURSDAY...Sunny. Highs in the lower 70s. .THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. .FRIDAY...Partly cloudy in the morning, then clearing. Highs in the mid 70s. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s. .SATURDAY...Partly cloudy in the morning, then clearing. A slight chance of. Highs in the lower 70s. $$ WYZ008-201000- Bighorn Mountains West- 917 PM MDT Sat Sep 19 2026 ...FLOOD WATCH IN EFFECT THROUGH SUNDAY AFTERNOON... .TONIGHT...Cloudy with rain showers with a slight chance of thunderstorms. Patchy fog after midnight. Some thunderstorms may produce heavy rainfall. Lows in the lower 40s. Northwest winds around 10 mph. Chance of rain 90 percent. .SUNDAY...Patchy fog in the morning. A slight chance of thunderstorms. Rain showers. Some thunderstorms may produce heavy rainfall. Highs around 50. Northwest winds around 10 mph. Chance of rain 80 percent. .SUNDAY NIGHT...Mostly cloudy. A chance of rain showers with a slight chance of thunderstorms in the evening. Lows around 40. Northwest winds around 10 mph in the evening. Chance of rain 30 percent. .MONDAY...Partly cloudy in the morning, then clearing. Highs in the upper 50s. Southwest winds around 10 mph in the afternoon. .MONDAY NIGHT...Clear. Lows in the lower 40s. Southeast winds around 10 mph. .TUESDAY...Mostly sunny. Highs in the mid 60s. .TUESDAY NIGHT...Mostly clear in the evening, then partly cloudy with a chance of rain showers with a slight chance of thunderstorms after midnight. Lows in the upper 40s. Chance of rain 30 percent. .WEDNESDAY...Partly cloudy with a chance of rain showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 30 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. .THURSDAY...Sunny. Highs in the upper 60s. .THURSDAY NIGHT...Mostly clear. Lows around 50. .FRIDAY...Mostly sunny. Highs in the upper 60s. .FRIDAY NIGHT...Mostly clear. Lows around 50. .SATURDAY...Partly cloudy in the morning, then clearing. A slight chance of. Highs in the mid 60s. $$ WYZ009-201000- Bighorn Mountains Southeast- 917 PM MDT Sat Sep 19 2026 ...FLOOD WATCH IN EFFECT THROUGH SUNDAY AFTERNOON... .TONIGHT...Patchy fog late this evening. Rain showers likely. A chance of thunderstorms late this evening, then a slight chance of thunderstorms after midnight. Some thunderstorms may produce heavy rainfall late this evening. Some thunderstorms may produce heavy rainfall after midnight. Near steady temperature in the mid 40s. Northwest winds around 10 mph. Gusts up to 25 mph late this evening. Chance of rain 70 percent. .SUNDAY...A slight chance of thunderstorms. Rain showers. Some thunderstorms may produce heavy rainfall. Highs around 50. Northwest winds around 10 mph with gusts up to 20 mph. Chance of rain 90 percent. .SUNDAY NIGHT...Mostly cloudy. A chance of rain showers with a slight chance of thunderstorms in the evening. Lows in the upper 30s. Northwest winds around 10 mph in the evening. Chance of rain 40 percent. .MONDAY...Partly cloudy in the morning, then mostly sunny with a chance of rain showers in the afternoon. Highs in the upper 50s. South winds around 10 mph in the afternoon. Chance of rain 30 percent. .MONDAY NIGHT...Mostly clear. Lows in the lower 40s. South winds around 10 mph with gusts up to 20 mph, becoming southwest after midnight. .TUESDAY...Mostly sunny. Highs in the mid 60s. .TUESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. A slight chance of rain showers and thunderstorms. Lows in the upper 40s. Chance of rain 20 percent. .WEDNESDAY...Mostly cloudy in the morning, then becoming partly cloudy. A chance of rain showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 40 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 40s. .THURSDAY...Sunny. Highs in the upper 60s. .THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. .FRIDAY...Partly cloudy in the morning, then clearing. 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. A slight chance of. Highs in the mid 60s. $$ WYZ012-201000- Teton and Gros Ventre Mountains- 917 PM MDT Sat Sep 19 2026 .TONIGHT...Mostly cloudy. Areas of fog. Lows in the mid 30s. .SUNDAY...Partly cloudy. Areas of fog in the morning. A slight chance of. A slight chance of. Highs in the lower 50s. Northwest winds around 10 mph with gusts up to 20 mph in the afternoon. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 30s. North winds around 10 mph in the evening. .MONDAY...Mostly sunny. Highs in the upper 50s. .MONDAY NIGHT...Mostly clear. Lows in the mid 30s. East winds around 10 mph after midnight. .TUESDAY...Partly cloudy. Highs in the lower 60s. .TUESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of rain showers with a slight chance of thunderstorms. Lows around 40. Chance of rain 40 percent. .WEDNESDAY...Partly cloudy with a chance of rain showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Chance of rain 30 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 30s. .THURSDAY...Sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly clear. Lows around 40. .FRIDAY...Mostly sunny. Highs in the lower 60s. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. .SATURDAY...Partly cloudy with a slight chance of rain showers. A slight chance of thunderstorms in the afternoon. Highs around 60. Chance of rain 20 percent. $$ WYZ014-201000- Wind River Mountains West- 917 PM MDT Sat Sep 19 2026 .TONIGHT...Mostly cloudy with a chance of snow showers. A chance of rain showers with a slight chance of thunderstorms late this evening, then rain showers likely with a slight chance of thunderstorms after midnight. Patchy fog late this evening. Areas of fog after midnight. Some thunderstorms may produce heavy rainfall after midnight. Little or no snow accumulation. Lows in the lower 30s. Chance of precipitation 60 percent. .SUNDAY...Partly cloudy. Areas of fog in the morning. A chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 50s. West winds around 10 mph with gusts up to 20 mph in the afternoon. Chance of rain 30 percent. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 30s. North winds around 10 mph in the evening. .MONDAY...Mostly sunny. Highs in the mid 50s. Southwest winds around 10 mph with gusts up to 20 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows in the mid 30s. .TUESDAY...Partly cloudy. Highs in the upper 50s. .TUESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of rain showers with a slight chance of thunderstorms. Lows in the upper 30s. Chance of rain 40 percent. .WEDNESDAY...Mostly cloudy in the morning, then becoming partly cloudy. A chance of rain showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Chance of rain 30 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 30s. .THURSDAY...Sunny. Highs in the lower 60s. .THURSDAY NIGHT...Mostly clear. Lows in the upper 30s. .FRIDAY...Partly cloudy in the morning, then clearing. A slight chance of. Highs around 60. .FRIDAY NIGHT...Partly cloudy. Lows around 40. .SATURDAY...Partly cloudy. A chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Chance of rain 30 percent. $$ WYZ015-201000- Wind River Mountains East- 917 PM MDT Sat Sep 19 2026 .TONIGHT...Rain showers with possible snow showers and thunderstorms likely late this evening, then rain showers likely with possible snow showers and thunderstorms after midnight. Areas of fog. Some thunderstorms may produce heavy rainfall after midnight. Little or no snow accumulation. Lows in the mid 30s. Chance of precipitation 80 percent. .SUNDAY...Partly cloudy in the morning, then mostly cloudy with rain showers likely with possible snow showers and thunderstorms in the afternoon. Snow accumulation up to 1 inch. Highs in the upper 40s. North winds around 10 mph with gusts up to 20 mph in the afternoon. Chance of precipitation 60 percent. .SUNDAY 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. .MONDAY...Mostly sunny. Highs in the lower 50s. Southwest winds around 10 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows in the mid 30s. Southwest winds around 10 mph after midnight. .TUESDAY...Partly cloudy. A slight chance of. Highs in the upper 50s. .TUESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of rain showers with a slight chance of thunderstorms. Lows around 40. Chance of rain 40 percent. .WEDNESDAY...Mostly cloudy in the morning, then becoming partly cloudy. A chance of rain showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 50s. Chance of rain 30 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 30s. .THURSDAY...Sunny. Highs around 60. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 40. .FRIDAY...Partly cloudy in the morning, then clearing. Highs around 60. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. .SATURDAY...Partly cloudy. A chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Chance of rain 30 percent. $$ WYZ019-201000- Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 917 PM MDT Sat Sep 19 2026 .TONIGHT...Showers likely. A chance of thunderstorms late this evening, then a slight chance of thunderstorms after midnight. Some thunderstorms may produce heavy rainfall after midnight. Lows in the lower 40s. Northwest winds around 10 mph with gusts up to 25 mph. Chance of rain 70 percent. .SUNDAY...Mostly cloudy in the morning, then becoming partly cloudy. Areas of fog in the morning. A chance of showers. A slight chance of thunderstorms. Some thunderstorms may produce heavy rainfall in the morning. Highs around 60. West winds around 10 mph with gusts up to 30 mph. Chance of rain 50 percent. .SUNDAY NIGHT...Partly cloudy. Lows in the upper 30s. Gusts up to 20 mph in the evening. .MONDAY...Partly cloudy in the morning, then clearing. Highs in the mid 60s. Southwest winds around 10 mph with gusts up to 20 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows around 40. .TUESDAY...Mostly sunny. Highs in the lower 70s. .TUESDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the mid 40s. Chance of rain 30 percent. .WEDNESDAY...Partly cloudy in the morning, then clearing. Breezy with highs around 70. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 40s. .THURSDAY...Sunny. Highs in the lower 70s. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 40s. .FRIDAY...Partly cloudy in the morning, then clearing. Highs in the lower 70s. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. .SATURDAY...Partly cloudy in the morning, then clearing. A slight chance of. Highs in the lower 70s. $$ WYZ024-201000- Salt River and Wyoming Ranges- 917 PM MDT Sat Sep 19 2026 .TONIGHT...Mostly cloudy late this evening, then becoming partly cloudy. A chance of rain showers late this evening. Lows in the mid 30s. Northwest winds around 10 mph. Chance of rain 30 percent. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 50s. Northwest winds around 10 mph with gusts up to 20 mph in the afternoon. .SUNDAY NIGHT...Mostly clear. Lows in the mid 30s. Northwest winds around 10 mph with gusts up to 20 mph in the evening. .MONDAY...Mostly sunny. Highs in the lower 60s. Southwest winds around 10 mph with gusts up to 20 mph in the afternoon. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 30s. Southwest winds around 10 mph in the evening. .TUESDAY...Partly cloudy. A slight chance of. Highs in the mid 60s. .TUESDAY NIGHT...Mostly cloudy with a chance of rain showers with a slight chance of thunderstorms. Lows in the lower 40s. Chance of rain 40 percent. .WEDNESDAY...Partly cloudy in the morning, then clearing. A slight chance of rain showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 20 percent. .WEDNESDAY NIGHT...Mostly clear. Lows around 40. .THURSDAY...Sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. .FRIDAY...Mostly sunny. Highs in the mid 60s. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. .SATURDAY...Partly cloudy with a slight chance of rain showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 20 percent. $$ WYZ030-201000- East Sweetwater County- Including the city of Wamsutter 917 PM MDT Sat Sep 19 2026 .TONIGHT...Mostly cloudy with a chance of showers and thunderstorms late this evening, then partly cloudy with showers likely with a slight chance of thunderstorms after midnight. Patchy fog after midnight. Some thunderstorms may produce heavy rainfall after midnight. Lows in the lower 40s. West winds around 10 mph. Chance of rain 60 percent. .SUNDAY...Partly cloudy in the morning, then clearing. Areas of fog in the morning. Highs around 60. West winds around 10 mph. .SUNDAY NIGHT...Mostly clear. Lows in the upper 30s. .MONDAY...Partly cloudy in the morning, then clearing. Highs in the mid 60s. Southwest winds around 10 mph in the afternoon. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 40. .TUESDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs around 70. .TUESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms in the evening. A chance of showers. Lows in the lower 40s. Chance of rain 30 percent. .WEDNESDAY...Partly cloudy in the morning, then clearing. Highs in the upper 60s. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 40s. .THURSDAY...Mostly sunny. Highs around 70. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 40s. .FRIDAY...Partly cloudy in the morning, then clearing. A slight chance of. Highs around 70. .FRIDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a slight chance of showers. Lows in the mid 40s. Chance of rain 20 percent. .SATURDAY...Partly cloudy in the morning, then clearing. A slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs around 70. Chance of rain 20 percent. $$