7-Day Zone Forecast for Sioux County (Text-Only)
NWS Forecast for: Sioux County
Issued by: National Weather Service Sioux Falls, SD
Last Update: 256 PM CST Sun Jan 11 2026
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Tonight: Partly cloudy this evening, then becoming mostly cloudy. Not as cool with lows in the upper 20s. West winds 10 to 15 mph.

Monday: Mostly sunny. Not as cool with highs in the upper 40s. West winds 5 to 10 mph.

Monday Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 30s. Temperature rising into the upper 30s after midnight. West winds 10 to 15 mph.

Tuesday: Mostly sunny and breezy. Highs in the lower 50s. Northwest winds 15 to 25 mph with gusts up to 35 mph.

Tuesday Night: Mostly cloudy and breezy, cooler with lows in the mid 20s. Northwest winds 20 to 25 mph.

Wednesday: Sunny, breezy and much cooler with highs around 30.

Wednesday Night: Mostly clear in the evening, then becoming mostly cloudy. Lows 15 to 20.

Thursday: Mostly cloudy. A chance of snow in the afternoon. Highs in the upper 30s. Chance of snow 30 percent.

Thursday Night: Mostly cloudy. A slight chance of snow in the evening, then a chance of snow after midnight. Lows in the mid 20s. Chance of snow 40 percent.

Friday: Mostly cloudy. A chance of snow in the morning, then snow likely in the afternoon. Breezy with highs in the lower 30s. Temperature falling into the mid 20s in the afternoon. Chance of snow 60 percent.

Friday Night: Mostly cloudy. Much colder with lows around 10 above.

Saturday: Partly sunny with a 20 percent chance of snow. Highs in the lower 20s.

Saturday Night: Partly cloudy. Cold with lows around 10 above.

Sunday: Mostly sunny. Highs around 30.







Zone Forecast: Sioux County

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