| NWS Forecast for: Green Mountains and Rattlesnake Range Issued by: National Weather Service Riverton, WY Last Update: 947 PM MDT Fri Mar 13 2026 | |
Tonight: Partly cloudy and breezy. Lows in the mid 30s. West winds 15 to 25 mph with gusts up to 50 mph. Saturday: Partly cloudy. A chance of rain and snow showers in the afternoon. Very windy with highs in the lower 50s. West winds 35 to 45 mph with gusts up to 70 mph. Chance of precipitation 30 percent. Saturday Night: Rain showers in the evening. Snow showers. Patchy blowing snow in the evening. Areas of blowing snow after midnight. Snow accumulation up to 3 inches. Very windy and much colder with lows 8 to 14 above. Northwest winds 30 to 40 mph with gusts up to 60 mph, becoming north 20 to 30 mph with gusts up to 45 mph after midnight. Chance of precipitation 90 percent. Sunday: Partly cloudy. A chance of snow showers in the morning. Breezy and much cooler with highs in the upper 20s. Northwest winds 15 to 20 mph with gusts up to 35 mph. Chance of snow 30 percent. Sunday Night: Partly cloudy in the evening, then becoming mostly cloudy. Cold with lows 12 to 18. Northwest winds 10 to 15 mph, becoming southwest after midnight. Gusts up to 30 mph. Monday: Mostly cloudy and breezy. Not as cool with highs in the upper 40s. Monday Night: Mostly cloudy in the evening, then becoming partly cloudy. Breezy and not as cool with lows in the mid 30s. Tuesday: Partly cloudy and windy. Highs in the lower 60s. Tuesday Night: Mostly cloudy in the evening, then becoming partly cloudy. Breezy with lows around 40. Wednesday: Mostly sunny and breezy. Highs in the upper 60s. Wednesday Night: Mostly clear in the evening, then becoming partly cloudy. Breezy with lows in the lower 40s. Thursday: Partly cloudy and breezy. Highs in the lower 70s. Thursday Night: Partly cloudy. Lows in the lower 40s. Friday: Partly cloudy and breezy. Highs in the lower 70s. | |
| Zone Forecast: Green Mountains and Rattlesnake Range | |
Visit your local NWS office at: https://www.weather.gov/riw |