| NWS Forecast for: North Sioux Issued by: National Weather Service Cheyenne, WY Last Update: 1232 AM MDT Thu Aug 27 2026 |  |
| Rest Of Tonight: Mostly clear. Lows around 60. South winds 5 to 10 mph. Thursday: Sunny, hot with highs around 90. South winds 5 to 10 mph. Thursday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s. South winds 15 to 20 mph with gusts up to 30 mph. Friday: Mostly sunny. Hot with highs in the mid 90s. West winds 10 to 15 mph with gusts up to 25 mph. Friday Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 60s. West winds 10 to 15 mph. Saturday: Mostly sunny. Hot with highs in the mid 90s. Saturday Night: Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the lower 60s. Chance of rain 40 percent. Sunday: Mostly sunny. Hot with highs around 90. Sunday Night: Mostly cloudy. Lows in the upper 50s. Monday: Mostly sunny. Hot with highs in the mid 80s. Monday Night: Mostly cloudy. Lows in the upper 50s. Tuesday: Mostly sunny. Hot with highs around 90. Tuesday Night And Wednesday: Mostly clear. Hot. Lows around 60. Highs in the lower 90s. | |
| Zone Forecast: North Sioux | |
Visit your local NWS office at: https://www.weather.gov/cys |