County Forecast for Big Stone City , SD
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100400-
Grant-
Including the city of Milbank
331 PM CDT Mon Mar 9 2026

Tonight   Partly cloudy this evening, then becoming mostly cloudy. A 50 percent chance of snow. Snow accumulation up to 1 inch possible. Lows in the mid 20s. North winds 10 to 15 mph with gusts up to 30 mph.
Tuesday   Mostly cloudy. A slight chance of snow in the afternoon. Highs in the upper 30s. North winds 5 to 10 mph with gusts up to 20 mph. Chance of snow 20 percent.
Tuesday night   Snow likely with a slight chance of rain in the evening, then a chance of snow after midnight. Snow accumulation around an inch possible. Lows in the mid 20s. North winds 5 to 10 mph. Chance of precipitation 70 percent.
Wednesday   Partly sunny. Highs in the upper 30s. Northwest winds 10 to 15 mph with gusts up to 25 mph.
Wednesday night   Mostly clear in the evening, then becoming mostly cloudy. Lows in the mid 20s. West winds 5 to 10 mph, becoming southwest 10 to 15 mph after midnight.
Thursday and thursday night   Mostly cloudy with a chance of rain and snow. Highs in the upper 40s. Lows in the mid 20s. Chance of precipitation 40 percent.
Friday   Mostly cloudy. Colder with highs in the mid 30s.
Friday night   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.
Saturday   Cloudy with a 50 percent chance of snow. Highs in the mid 30s.
Saturday night   Snow likely. Snow may be heavy at times after midnight. Heavy snow accumulation possible. Colder with lows 10 to 15. Chance of snow 70 percent.
Sunday   Mostly cloudy with a chance of snow in the morning, then partly sunny in the afternoon. Brisk, colder with highs in the lower 20s. Chance of snow 40 percent.
Sunday night and monday   Partly cloudy. Lows 5 to 10 above. Highs in the mid 20s.
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Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Strong Thunderstorms Spreading Across Central US Tuesday
Posted at 12:07PM Mon Mar 9, 2026 CDT
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