| NWS Forecast for: Yellowstone National Park Issued by: National Weather Service Riverton, WY Last Update: 332 PM MDT Tue Sep 30 2025 |  |
This Afternoon: Cloudy with showers likely with a chance of thunderstorms. Highs in the mid 50s. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 70 percent. Tonight: Mostly cloudy with a slight chance of thunderstorms. Rain showers likely, mainly in the evening. Lows in the upper 30s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 60 percent. Wednesday: Mostly cloudy in the morning, then becoming partly cloudy. A chance of rain showers in the morning. A slight chance of thunderstorms. Breezy with highs in the lower 50s. Southwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 30 percent. Wednesday Night: Partly cloudy. Lows in the mid 30s. South winds 10 to 15 mph. Gusts up to 30 mph in the evening. Thursday: Partly cloudy with a chance of rain showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 30 percent. Thursday Night: Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms in the evening. A chance of rain showers. Lows in the upper 30s. Chance of rain 40 percent. Friday: Mostly cloudy with rain showers likely. A slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Chance of rain 70 percent. Friday Night: A chance of thunderstorms in the evening. Rain showers likely. Lows in the mid 30s. Chance of rain 60 percent. Saturday: Mostly cloudy with rain showers likely with a slight chance of thunderstorms. A chance of snow showers in the morning, then snow showers likely in the afternoon. Little or no snow accumulation. Highs in the mid 40s. Chance of precipitation 60 percent. Saturday Night: Mostly cloudy with a chance of rain showers. A chance of snow showers in the evening, then snow showers likely after midnight. Light snow accumulation possible. Lows in the upper 20s. Chance of precipitation 60 percent. Sunday: Mostly cloudy with a chance of snow and rain showers. A slight chance of thunderstorms in the afternoon. New light snow accumulation possible. Highs in the lower 40s. Chance of precipitation 50 percent. Sunday Night: Partly cloudy with a chance of snow and rain showers. Lows in the lower 20s. Chance of precipitation 30 percent. Monday: Partly cloudy with a slight chance of snow and rain showers. Highs in the mid 40s. Chance of precipitation 20 percent. | |
| Zone Forecast: Yellowstone National Park | |
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