| NWS Forecast for: Banner County Issued by: National Weather Service Cheyenne, WY Last Update: 424 AM MDT Sat May 16 2026 |  |
| Today: Mostly sunny. Scattered showers and thunderstorms this afternoon. Some thunderstorms may produce gusty winds and small hail this afternoon. Highs around 80. North winds 5 to 10 mph, becoming southeast 10 to 15 mph with gusts up to 25 mph this afternoon. Chance of rain 30 percent. Tonight: Mostly cloudy. Scattered showers and thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Some thunderstorms may produce damaging winds and large hail in the evening. Lows in the upper 40s. Southeast winds 10 to 15 mph, becoming southwest after midnight. Chance of rain 50 percent. Sunday: Mostly sunny. Showers likely in the afternoon. Not as warm with highs in the upper 60s. Northwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 60 percent. Sunday Night: Showers. Much cooler with lows in the mid 30s. North winds 15 to 20 mph with gusts up to 30 mph. Chance of rain near 100 percent. Monday: Rain showers in the morning, then rain and snow showers in the afternoon. Little or no snow accumulation. Much cooler. Near steady temperature in the upper 30s. North winds 15 to 20 mph with gusts up to 30 mph. Chance of precipitation near 100 percent. Monday Night: Mostly cloudy. A chance of rain and snow showers in the evening. Cold with lows in the upper 20s. Chance of precipitation 40 percent. Tuesday And Tuesday Night: Partly cloudy. Highs in the mid 50s. Lows in the lower 30s. Wednesday Through Thursday Night: Partly cloudy. Highs in the mid 60s. Lows in the lower 40s. Friday: Sunny, warmer with highs in the upper 70s. | |
| Zone Forecast: Banner County | |
Visit your local NWS office at: https://www.weather.gov/cys |