Expires:202512210100;;941798 FPUS55 KRIW 202348 ZFPRIW Zone Forecast Product for Western and Central Wyoming National Weather Service Riverton WY 446 PM MST Sat Dec 20 2025 WYZ029-210100- Flaming Gorge- 446 PM MST Sat Dec 20 2025 .THIS AFTERNOON...Partly cloudy. Highs in the lower 40s. Northwest winds around 10 mph with gusts up to 20 mph. .TONIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 30s. South winds around 10 mph. .SUNDAY...Mostly cloudy in the morning, then becoming partly cloudy. Breezy with highs in the lower 50s. South winds 15 to 20 mph with gusts up to 30 mph. .SUNDAY NIGHT...Partly cloudy and breezy. Lows in the lower 30s. South winds 20 to 25 mph with gusts up to 35 mph. .MONDAY...Partly cloudy and breezy. Highs in the lower 50s. Southwest winds 15 to 20 mph with gusts up to 30 mph. .MONDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Breezy with lows in the lower 30s. .TUESDAY...Mostly cloudy and breezy. Highs in the mid 50s. .TUESDAY NIGHT...Cloudy, breezy with lows in the mid 30s. .WEDNESDAY...Partly cloudy in the morning, then becoming mostly cloudy. Breezy with highs around 50. .WEDNESDAY NIGHT...A chance of rain showers in the evening, then rain showers likely after midnight. Breezy with lows in the mid 30s. Chance of rain 60 percent. .CHRISTMAS DAY...Rain showers likely with a slight chance of snow showers. Little or no snow accumulation. Breezy with highs around 50. Chance of precipitation 60 percent. .THURSDAY NIGHT...Mostly cloudy with a chance of rain and snow showers. Little or no snow accumulation. Lows in the lower 30s. Chance of precipitation 50 percent. .FRIDAY...Mostly cloudy with a chance of rain and snow showers. Highs in the mid 40s. Chance of precipitation 40 percent. $$