| NWS Forecast for: Teton and Gros Ventre Mountains Issued by: National Weather Service Riverton, WY Last Update: 1119 PM MDT Sun May 17 2026 |  |
| Tonight: Cloudy with numerous snow showers. Patchy blowing snow. Visibility one quarter mile or less at times. Snow accumulation up to 1 inch. Breezy with lows in the lower 20s. Northeast winds 15 to 25 mph with gusts up to 35 mph. Chance of snow 60 percent. Monday: Patchy blowing snow in the morning. Cloudy with numerous snow showers. Isolated thunderstorms in the afternoon. Snow accumulation up to 1 inch. Breezy with highs in the mid 30s. Northeast winds 20 to 25 mph with gusts up to 35 mph, diminishing to 10 to 15 mph with gusts up to 25 mph in the afternoon. Chance of snow 60 percent. Monday Night: Partly cloudy with scattered snow showers in the evening, then mostly clear after midnight. Lows in the lower 20s. Northeast winds 10 to 15 mph in the evening. Chance of snow 30 percent. Tuesday: Mostly sunny in the morning, then becoming partly cloudy. Highs in the lower 40s. West winds around 10 mph in the afternoon. Tuesday Night: Partly cloudy in the evening, then clearing. Lows in the mid 20s. Southwest winds around 10 mph with gusts up to 20 mph, becoming southeast after midnight. Wednesday: Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 40s. Wednesday Night: Mostly cloudy. A slight chance of rain showers, thunderstorms and snow showers in the evening, then a chance of snow and rain showers after midnight. Little or no snow accumulation. Lows in the lower 30s. Chance of precipitation 50 percent. Thursday: Partly cloudy with a slight chance of snow showers. A slight chance of rain showers and thunderstorms in the afternoon. Highs in the upper 40s. Chance of precipitation 20 percent. Thursday Night: Partly cloudy. Lows in the upper 20s. Friday: Partly cloudy. A chance of rain showers, snow showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 50s. Chance of precipitation 30 percent. Friday Night: Partly cloudy. Lows in the lower 30s. Saturday: Mostly sunny in the morning, then becoming partly cloudy. A slight chance of. Breezy with highs in the upper 50s. Saturday Night: Partly cloudy. Lows in the mid 30s. Sunday: Partly cloudy in the morning, then clearing. A slight chance of. Breezy with highs in the lower 60s. | |
| Zone Forecast: Teton and Gros Ventre Mountains | |
Visit your local NWS office at: https://www.weather.gov/riw |