| NWS Forecast for: Southwest Bighorn Basin Issued by: National Weather Service Riverton, WY Last Update: 1231 AM MDT Wed Sep 9 2026 |  |
| Rest Of Tonight: Clear. Lows around 50. Wednesday: Sunny. Highs around 80. South winds around 10 mph, becoming northeast with gusts up to 20 mph in the afternoon. Wednesday Night: Clear. Lows around 50. North winds around 10 mph with gusts up to 20 mph, becoming southwest after midnight. Thursday: Sunny. Highs in the mid 80s. South winds 10 to 15 mph. Thursday Night: Mostly clear. Lows in the mid 50s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Friday: Partly cloudy in the morning, then clearing. Highs in the upper 70s. Friday Night: Mostly clear in the evening, then becoming partly cloudy. Breezy with lows in the mid 40s. Saturday: Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 30 percent. Saturday Night: Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms in the evening. A chance of showers. Lows in the mid 40s. Chance of rain 50 percent. Sunday: Mostly cloudy in the morning, then becoming partly cloudy. A 40 percent chance of showers. Breezy with highs in the upper 60s. Sunday Night: Partly cloudy with a 30 percent chance of showers. Breezy with lows in the upper 30s. Monday: Mostly sunny. Highs in the mid 60s. Monday Night: Clear. Lows around 40. Tuesday: Sunny. Highs in the lower 70s. | |
| Zone Forecast: Southwest Bighorn Basin | |
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