| NWS Forecast for: Shirley Basin Issued by: National Weather Service Cheyenne, WY Last Update: 1232 AM MDT Sat Sep 12 2026 |  |
| Rest Of Tonight: Partly cloudy. Lows in the lower 40s. East winds 5 to 10 mph with gusts up to 20 mph. Saturday: Mostly sunny. Highs in the upper 70s. South winds 5 to 10 mph, increasing to west 15 to 20 mph with gusts up to 30 mph in the afternoon. Saturday Night: Partly cloudy in the evening, then clearing. Lows around 50. West winds 15 to 20 mph with gusts up to 30 mph, becoming southwest 5 to 10 mph after midnight. Sunday: Mostly sunny and breezy. Highs in the lower 80s. South winds 10 to 15 mph, increasing to southwest 20 to 25 mph in the afternoon. Sunday Night: Mostly cloudy with showers likely with a chance of thunderstorms in the evening, then partly cloudy with a chance of showers after midnight. Lows in the lower 50s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 70 percent. Monday: Sunny, breezy and not as warm with highs in the lower 70s. Monday Night: Mostly clear in the evening, then becoming partly cloudy. Breezy, cooler with lows in the lower 40s. Tuesday: Mostly sunny. A chance of showers in the afternoon. Highs in the lower 70s. Chance of rain 50 percent. Tuesday Night: Partly cloudy with a chance of showers in the evening, then mostly cloudy after midnight. Lows in the mid 40s. Chance of rain 50 percent. Wednesday: Mostly sunny. A chance of showers in the afternoon. Highs in the lower 70s. Chance of rain 40 percent. Wednesday Night: Partly cloudy. A chance of showers in the evening. Lows in the lower 40s. Chance of rain 30 percent. Thursday Through Friday: Partly cloudy. Highs in the mid 70s. Lows in the mid 40s. | |
| Zone Forecast: Shirley Basin | |
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