| NWS Forecast for: Star Valley Issued by: National Weather Service Riverton, WY Last Update: 1017 PM MDT Thu Jun 18 2026 | |
| Tonight: Partly cloudy. Lows in the mid 40s. Juneteenth: Mostly sunny. Highs in the mid 80s. West winds around 10 mph with gusts up to 20 mph in the afternoon. Friday Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 40s. Southwest winds around 10 mph in the evening. Saturday: Partly cloudy. Showers likely with a chance of thunderstorms in the afternoon. Highs in the upper 70s. West winds 10 to 15 mph with gusts up to 25 mph in the afternoon. Chance of rain 60 percent. Saturday Night: Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the lower 40s. Southwest winds around 10 mph with gusts up to 20 mph in the evening. Chance of rain 30 percent. Sunday: Partly cloudy in the morning, then clearing. Highs in the mid 70s. Sunday Night: Mostly clear. Lows in the lower 40s. Monday: Sunny. Highs around 80. Monday Night: Clear. Lows in the lower 40s. Tuesday: Sunny. Highs in the mid 80s. Tuesday Night: Clear. Lows in the mid 40s. Wednesday: Sunny. Highs in the mid 80s. Wednesday Night: Mostly clear. Lows in the mid 40s. Thursday: Mostly sunny. Highs in the lower 80s. | |
| Zone Forecast: Star Valley | |
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