| NWS Forecast for: Yellowstone National Park Issued by: National Weather Service Riverton, WY Last Update: 102 PM MDT Thu Aug 27 2026 | |
| This Afternoon: Partly cloudy with scattered showers and thunderstorms. Highs in the mid 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 30 percent. Tonight: Scattered thunderstorms in the evening. Partly cloudy with scattered showers. Lows in the upper 40s. South winds around 10 mph. Gusts up to 25 mph in the evening. Chance of rain 30 percent. Friday: Mostly cloudy. Numerous showers with isolated thunderstorms in the morning, then showers and scattered thunderstorms in the afternoon. Highs in the mid 60s. Southwest winds around 10 mph with gusts up to 25 mph. Chance of rain 80 percent. Friday Night: Cloudy. Numerous showers and scattered thunderstorms in the evening, then showers with isolated thunderstorms after midnight. Lows in the mid 40s. Southwest winds around 10 mph with gusts up to 25 mph. Chance of rain 90 percent. Saturday: Showers. Isolated thunderstorms in the morning, then scattered thunderstorms in the afternoon. Highs in the upper 50s. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 90 percent. Saturday Night: Rain showers. A chance of thunderstorms, mainly in the evening. Lows in the lower 40s. Chance of rain 80 percent. Sunday: Mostly cloudy in the morning, then becoming partly cloudy. A chance of thunderstorms. Rain showers, mainly in the morning. Breezy with highs in the upper 50s. Chance of rain 80 percent. Sunday Night: Mostly clear. Lows in the mid 30s. Monday: Sunny. A slight chance of. Highs in the lower 60s. Monday Night: Mostly clear with a chance of rain showers with a slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the upper 30s. Chance of rain 30 percent. Tuesday: Partly cloudy in the morning, then mostly sunny with a chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 30 percent. Tuesday Night: Partly cloudy. A slight chance of rain showers and thunderstorms in the evening, then a chance of rain showers after midnight. Lows in the upper 30s. Chance of rain 30 percent. Wednesday: Mostly sunny with a chance of rain showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 30 percent. | |
| Zone Forecast: Yellowstone National Park | |
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