7-Day Zone Forecast for Sioux County (Text-Only)
NWS Forecast for: Sioux County
Issued by: National Weather Service Bismarck, ND
Last Update: 551 AM CST Thu Mar 5 2026




Today: Mostly cloudy with scattered flurries and a chance of sprinkles in the morning, then partly sunny in the afternoon. Widespread dense fog in the morning, then patchy fog in the afternoon. Cooler. Highs around 50. Southeast winds 10 to 15 mph with gusts up to 25 mph.

Tonight: Mostly cloudy. Lows in the mid 20s. North winds 10 to 20 mph.

Friday: Mostly cloudy. A slight chance of snow in the morning, then a chance of snow in the afternoon. Colder. Little or no new snow accumulation. Highs in the mid 30s. North winds 15 to 20 mph with gusts up to 30 mph. Chance of snow 30 percent.

Friday Night: Mostly cloudy in the evening then clearing. Lows in the lower 20s. Northwest winds 10 to 15 mph.

Saturday: Sunny. Not as cool. Highs in the lower 50s. West winds 10 to 20 mph.

Saturday Night: Mostly cloudy. Lows in the upper 30s.

Sunday: Mostly sunny. Highs in the mid 60s.

Sunday Night: Decreasing clouds. Lows in the mid 30s.

Monday: Partly sunny. A slight chance of rain in the afternoon. Highs in the lower 50s. Chance of rain 20 percent.

Monday Night: Rain and snow likely. Lows in the mid 20s. Chance of precipitation 60 percent.

Tuesday: Decreasing clouds. A 50 percent chance of snow. Highs in the upper 30s.

Tuesday Night: Partly cloudy. A chance of snow in the evening, then a slight chance of snow after midnight. Lows 15 to 20. Chance of snow 30 percent.

Wednesday: Mostly sunny with a 20 percent chance of snow. Highs in the mid 30s.







Zone Forecast: Sioux County

Visit your local NWS office at: https://www.weather.gov/bis