| NWS Forecast for: Yellowstone National Park Issued by: National Weather Service Riverton, WY Last Update: 133 AM MDT Wed Jun 17 2026 |  |
| Rest Of Tonight: Clear. Lows around 40. West winds 10 to 15 mph with gusts up to 30 mph. Wednesday: Mostly sunny and breezy. Highs in the lower 60s. West winds 15 to 20 mph with gusts up to 35 mph. Wednesday Night: Mostly clear and breezy. Lows in the mid 30s. North winds 15 to 20 mph with gusts up to 30 mph in the evening. Thursday: Sunny. Highs in the mid 60s. West winds 10 to 15 mph. Gusts up to 30 mph in the afternoon. Thursday Night: Mostly clear in the evening, then becoming partly cloudy. Lows around 40. West winds 10 to 15 mph with gusts up to 30 mph in the evening. Juneteenth: Mostly sunny. Highs in the lower 70s. Friday Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 40s. Saturday: Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 80 percent. Saturday Night: Mostly cloudy. Showers with a chance of thunderstorms in the evening, then a slight chance of showers after midnight. Lows around 40. Chance of rain 80 percent. Sunday: Mostly cloudy in the morning, then becoming partly cloudy. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 40 percent. Sunday Night: Partly cloudy. A chance of rain showers and thunderstorms in the evening. Lows in the upper 30s. Chance of rain 30 percent. Monday: Partly cloudy in the morning, then mostly sunny with a chance of rain showers and thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 30 percent. Monday Night: Partly cloudy in the evening, then clearing. Lows in the upper 30s. Tuesday: Mostly sunny. Highs in the lower 70s. | |
| Zone Forecast: Yellowstone National Park | |
Visit your local NWS office at: https://www.weather.gov/riw |