| NWS Forecast for: South Sioux Issued by: National Weather Service Cheyenne, WY Last Update: 1202 PM MST Mon Feb 23 2026 | |
| Rest Of Today: Mostly sunny. Not as cool with highs in the upper 50s. West winds 10 to 15 mph with gusts up to 25 mph. Tonight: Partly cloudy and breezy. Not as cool with lows in the mid 30s. West winds 15 to 25 mph with gusts up to 40 mph. Tuesday: Partly sunny and windy. Highs in the upper 50s. West winds 20 to 30 mph with gusts up to 50 mph. Tuesday Night: Mostly cloudy. Cold with lows in the lower 30s. Temperature rising into the mid 30s after midnight. West winds 15 to 20 mph with gusts up to 35 mph. Wednesday: Partly sunny. A chance of rain and snow in the afternoon. Little or no snow accumulation. Very windy with highs in the upper 50s. Temperature falling into the mid 40s in the afternoon. Northwest winds 25 to 35 mph with gusts up to 60 mph. Chance of precipitation 30 percent. Wednesday Night: Partly cloudy in the evening, then clearing. Cold with lows in the lower 20s. Thursday And Thursday Night: Clear. Highs in the upper 50s. Lows in the lower 30s. Friday And Friday Night: Mostly clear and breezy. Highs in the lower 60s. Lows around 20. Saturday Through Sunday: Mostly cloudy. Highs in the upper 40s. Lows 16 to 22. | |
| Zone Forecast: South Sioux | |
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