| NWS Forecast for: Star Valley Issued by: National Weather Service Riverton, WY Last Update: 1131 PM MDT Mon Aug 17 2026 | |
| Tonight: Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Lows around 50. Chance of rain 20 percent. Tuesday: Mostly cloudy with a slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the upper 70s. Southwest winds around 10 mph with gusts up to 20 mph in the afternoon. Chance of rain 30 percent. Tuesday Night: Partly cloudy in the evening, then clearing. Lows in the upper 40s. Southwest winds around 10 mph with gusts up to 20 mph in the evening. Wednesday: Mostly sunny. Highs in the lower 80s. West winds around 10 mph with gusts up to 20 mph in the afternoon. Wednesday Night: Mostly clear. Lows in the upper 40s. East winds around 10 mph with gusts up to 20 mph in the evening. Thursday: Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 80s. Thursday Night: Partly cloudy. Lows in the lower 50s. Friday: Mostly sunny in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 20 percent. Friday Night: Partly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers after midnight. Lows in the mid 50s. Chance of rain 30 percent. Saturday: Mostly cloudy with a slight chance of showers in the morning, then partly cloudy with a chance of showers and thunderstorms in the afternoon. Highs around 80. Chance of rain 50 percent. Saturday Night: Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the lower 50s. Chance of rain 30 percent. Sunday: Partly cloudy. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 50 percent. Sunday Night: Partly cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Lows in the upper 40s. Chance of rain 30 percent. Monday: Partly cloudy in the morning, then mostly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 40 percent. | |
| Zone Forecast: Star Valley | |
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