| NWS Forecast for: Bighorn Mountains West Issued by: National Weather Service Riverton, WY Last Update: 103 PM MDT Wed Oct 1 2025 |  |
| This Afternoon: Mostly sunny. Highs in the upper 50s. West winds 10 to 15 mph with gusts up to 25 mph. Tonight: Mostly clear. Lows in the upper 40s. South winds around 10 mph with gusts up to 20 mph. Thursday: Sunny. Highs in the upper 60s. South winds 10 to 15 mph with gusts up to 25 mph. Thursday Night: Mostly clear. Lows in the lower 50s. South winds 10 to 15 mph with gusts up to 25 mph. Friday: Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 60s. South winds 10 to 15 mph with gusts up to 30 mph. Friday Night: Mostly cloudy with a slight chance of thunderstorms. A chance of rain showers in the evening, then rain showers likely after midnight. Lows in the mid 40s. Chance of rain 60 percent. Saturday: A chance of thunderstorms. Rain showers. Highs in the lower 50s. Temperature falling into the mid 40s in the afternoon. Chance of rain 90 percent. Saturday Night: Rain showers, snow showers with a slight chance of thunderstorms in the evening, then rain and snow showers likely after midnight. Light snow accumulation. Lows in the lower 30s. Chance of precipitation 80 percent. Sunday: Cloudy. Snow and rain showers likely, mainly in the morning. New light snow accumulation possible. Highs in the upper 30s. Chance of precipitation 60 percent. Sunday Night: Mostly cloudy with a chance of snow and rain showers. Lows in the upper 20s. Chance of precipitation 30 percent. Monday: A slight chance of rain showers in the morning. Partly cloudy with a slight chance of snow showers. Highs in the lower 40s. Chance of precipitation 20 percent. Monday Night: Partly cloudy. Lows in the lower 30s. Tuesday: Mostly sunny. Highs in the upper 40s. | |
| Zone Forecast: Bighorn Mountains West | |
Visit your local NWS office at: https://www.weather.gov/riw |