7-Day Zone Forecast for Shirley Basin (Text-Only)
NWS Forecast for: Shirley Basin
Issued by: National Weather Service Cheyenne, WY
Last Update: 142 PM MDT Mon Sep 14 2026




This Afternoon: Sunny and very windy. Not as warm. Near steady temperature in the mid 60s. West winds 30 to 35 mph with gusts up to 50 mph.

Tonight: Mostly clear and breezy. Much cooler with lows in the upper 30s. Northwest winds 20 to 25 mph with gusts up to 40 mph, becoming east 10 to 15 mph with gusts up to 25 mph after midnight.

Tuesday: Sunny. Highs in the lower 70s. Southeast winds 10 to 15 mph, becoming south in the afternoon.

Tuesday Night: Mostly cloudy with a chance of showers in the evening, then partly cloudy after midnight. Not as cool with lows in the upper 40s. South winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 50 percent.

Wednesday: Mostly sunny. Highs in the lower 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph.

Wednesday Night: Mostly cloudy. A chance of showers in the evening. Lows in the upper 40s. Chance of rain 50 percent.

Thursday: Partly sunny in the morning, then mostly cloudy with a chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 50 percent.

Thursday Night: Mostly cloudy. Lows in the upper 40s.

Friday And Friday Night: Partly cloudy. Highs in the lower 70s. Lows in the lower 40s.

Saturday Through Sunday: Mostly clear. Highs in the upper 60s. Lows around 40.







Zone Forecast: Shirley Basin

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