| NWS Forecast for: South Sioux Issued by: National Weather Service Cheyenne, WY Last Update: 627 PM MDT Thu Apr 30 2026 | |
Tonight: Mostly clear. Cold with lows in the upper 20s. North winds 10 to 15 mph, diminishing to around 5 mph after midnight. Friday: Sunny. Highs in the lower 60s. Northwest winds 10 to 15 mph with gusts up to 25 mph. Friday Night: Mostly clear. Cold with lows in the upper 20s. Northeast winds 10 to 15 mph, becoming south around 5 mph after midnight. Saturday: Sunny, warmer with highs in the lower 70s. West winds 5 to 10 mph. Saturday Night: Mostly clear. Lows in the upper 30s. Northeast winds around 5 mph, becoming east after midnight. Sunday And Sunday Night: Partly cloudy. Highs in the lower 70s. Lows around 40. Monday: Sunny. A chance of showers in the afternoon. Highs in the lower 70s. Chance of rain 30 percent. Monday Night: Mostly cloudy with a 40 percent chance of rain showers. Lows in the upper 30s. Tuesday: Partly sunny with a chance of showers. Cooler with highs around 60. Chance of rain 50 percent. Tuesday Night: Mostly cloudy. A chance of rain showers in the evening. Lows in the lower 30s. Chance of rain 40 percent. Wednesday: Mostly sunny. Highs around 60. Wednesday Night And Thursday: Mostly clear. Lows in the mid 30s. Highs in the lower 70s. | |
| Zone Forecast: South Sioux | |
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