| NWS Forecast for: South Sioux Issued by: National Weather Service Cheyenne, WY Last Update: 323 PM MDT Fri Oct 10 2025 |  |
This Afternoon: Mostly cloudy and not as warm. Near steady temperature in the upper 60s. Southeast winds 15 to 20 mph with gusts up to 30 mph. Tonight: Mostly cloudy. A slight chance of showers in the evening. Lows in the lower 50s. Southeast winds 15 to 20 mph. Chance of rain 20 percent. Saturday: Partly sunny in the morning, then becoming mostly cloudy. Highs in the upper 70s. South winds around 10 mph. Saturday Night: Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 40s. South winds 10 to 15 mph. Sunday: Sunny, windy and not as warm with highs in the upper 60s. West winds 20 to 30 mph with gusts up to 45 mph. Sunday Night: Mostly clear. Much colder with lows in the lower 30s. Columbus Day: Mostly sunny. Highs in the upper 50s. Monday Night: Mostly cloudy. Lows in the upper 30s. Tuesday Through Thursday: Partly cloudy. Highs in the upper 60s. Lows in the lower 40s. | |
| Zone Forecast: South Sioux | |
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