| NWS Forecast for: Sioux County Issued by: National Weather Service Sioux Falls, SD Last Update: 634 AM CST Tue Jan 13 2026 |  |
Today: Mostly cloudy and breezy. Highs in the lower 50s. Temperature falling into the upper 40s this afternoon. Northwest winds 15 to 25 mph with gusts up to 35 mph. Tonight: Mostly cloudy in the evening, then becoming partly cloudy. Much cooler with lows around 19. North winds 15 to 20 mph with gusts up to 30 mph. Wednesday: Sunny. Much cooler with highs in the upper 20s. North winds 15 to 20 mph. Wednesday Night: Mostly clear in the evening, then becoming partly cloudy. Cold with lows around 15. North winds around 5 mph, becoming southeast after midnight. Thursday: Mostly cloudy in the morning, then partly sunny with a slight chance of rain and snow in the afternoon. Not as cool with highs in the lower 40s. South winds 10 to 15 mph, becoming west 15 to 20 mph in the afternoon. Chance of precipitation 20 percent. Thursday Night: A slight chance of rain in the evening. Mostly cloudy with a slight chance of snow. Breezy and not as cool with lows in the mid 20s. Chance of precipitation 20 percent. Friday: Mostly cloudy with a 50 percent chance of snow. Windy, cooler with highs in the lower 30s. Temperature falling into the lower 20s in the afternoon. Friday Night: Mostly cloudy and breezy. Much colder with lows around 10 above. Saturday: Mostly cloudy in the morning, then becoming partly sunny. Much cooler with highs 15 to 20. Saturday Night: Mostly cloudy in the evening, then becoming partly cloudy. Cold with lows around zero. Wind chill values as low as 15 below. Sunday: Mostly sunny. Highs in the lower 20s. Wind chill values as low as 15 below in the morning. Sunday Night: Partly cloudy. Cold with lows around 10 above. Martin Luther King Jr Day: Mostly sunny. Highs in the upper 20s. | |
| Zone Forecast: Sioux County | |
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