| NWS Forecast for: Shirley Basin Issued by: National Weather Service Cheyenne, WY Last Update: 1248 PM MDT Tue May 19 2026 | |
This Afternoon: Mostly sunny. Highs in the upper 30s. West winds 5 to 10 mph. Tonight: Mostly clear. Widespread frost. Cold with lows in the lower 20s. South winds around 5 mph. Wednesday: Widespread frost in the morning. Mostly sunny. Not as cool with highs in the upper 40s. Southwest winds 5 to 10 mph. Wednesday Night: Partly cloudy. Widespread frost after midnight. Cold with lows in the upper 20s. Southwest winds 5 to 10 mph, becoming south after midnight. Thursday: Mostly cloudy. A chance of rain showers and thunderstorms in the afternoon. Highs in the lower 50s. South winds 5 to 10 mph, becoming west in the afternoon. Chance of rain 50 percent. Thursday Night: Rain showers likely. Snow showers likely after midnight. Little or no snow accumulation. Cold with lows around 30. Chance of precipitation 70 percent. Friday: Mostly cloudy with a chance of rain and snow showers in the morning, then mostly sunny in the afternoon. Highs in the lower 50s. Chance of precipitation 40 percent. Friday Night: Partly cloudy. Cold with lows in the lower 30s. Saturday And Saturday Night: Mostly clear. Highs in the lower 60s. Lows in the mid 30s. Sunday And Sunday Night: Mostly clear. Highs in the upper 60s. Lows around 40. Memorial Day: Sunny. Highs in the mid 70s. | |
| Zone Forecast: Shirley Basin | |
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