Expires:202512221100;;002279 FPUS55 KRIW 220249 ZFPRIW Zone Forecast Product for Western and Central Wyoming National Weather Service Riverton WY 747 PM MST Sun Dec 21 2025 WYZ017-221100- Wind River Basin- Including the cities of Riverton and Shoshoni 747 PM MST Sun Dec 21 2025 .TONIGHT...Partly cloudy this evening, then clearing. Scattered rain showers. Breezy with lows in the upper 30s. Southwest winds 15 to 25 mph. Gusts up to 55 mph, decreasing to 45 mph after midnight. Chance of rain 30 percent. .MONDAY...Mostly sunny with scattered rain showers. Windy with highs in the mid 50s. Southwest winds 20 to 30 mph with gusts up to 45 mph. Chance of rain 30 percent. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Breezy with lows in the upper 30s. Southwest winds 15 to 20 mph with gusts up to 35 mph. .TUESDAY...Partly cloudy in the morning, then becoming mostly cloudy. Breezy with highs in the upper 50s. Southwest winds 15 to 20 mph with gusts up to 35 mph. .TUESDAY NIGHT...Mostly cloudy and breezy. Lows in the mid 30s. Southwest winds 15 to 20 mph with gusts up to 40 mph. .WEDNESDAY...Partly cloudy and windy. Highs in the mid 50s. .WEDNESDAY NIGHT...Mostly cloudy. A chance of rain showers in the evening, then rain showers likely after midnight. Windy with lows in the upper 30s. Chance of rain 60 percent. .CHRISTMAS DAY...A slight chance of snow showers in the morning. Mostly cloudy with a chance of rain showers. Breezy with highs in the lower 50s. Chance of precipitation 40 percent. .THURSDAY NIGHT...Partly cloudy with a chance of rain showers. A slight chance of snow showers in the evening, then a chance of snow showers after midnight. Breezy with lows in the lower 30s. Chance of precipitation 30 percent. .FRIDAY...Mostly cloudy in the morning, then becoming partly cloudy. A chance of snow showers with a slight chance of rain showers. Breezy with highs in the upper 40s. Chance of precipitation 30 percent. .FRIDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 20s. .SATURDAY...Mostly sunny. Highs around 40. .SATURDAY NIGHT...Mostly clear. Lows in the lower 20s. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the mid 40s. $$