Expires:202601092300;;077767 FPUS55 KRIW 092133 ZFPRIW Zone Forecast Product for Western and Central Wyoming National Weather Service Riverton WY 232 PM MST Fri Jan 9 2026 WYZ019-092300- Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 232 PM MST Fri Jan 9 2026 .THIS AFTERNOON...Mostly sunny. Highs in the mid 20s. West winds 10 to 15 mph with gusts up to 25 mph. .TONIGHT...Partly cloudy and breezy, cold with lows 9 to 15 above. West winds 15 to 20 mph with gusts up to 35 mph. .SATURDAY...Partly cloudy in the morning, then clearing. Breezy with highs in the lower 30s. West winds 15 to 20 mph with gusts up to 35 mph. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Cold with lows 14 to 20. Southwest winds 10 to 15 mph with gusts up to 25 mph. .SUNDAY...Partly cloudy in the morning, then clearing. Highs in the upper 30s. Southwest winds 10 to 15 mph with gusts up to 30 mph. .SUNDAY NIGHT...Mostly clear. Cold with lows around 20. .MONDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the lower 40s. .MONDAY NIGHT...Partly cloudy. Lows in the mid 20s. .TUESDAY...Mostly cloudy in the morning, then becoming partly cloudy. Highs in the mid 40s. .TUESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 20s. .WEDNESDAY...Partly cloudy in the morning, then clearing. Highs in the mid 40s. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 20s. .THURSDAY...Mostly sunny. Highs in the lower 40s. $$