County Forecast for Big Stone City , SD
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032300-
Grant-
Including the city of Milbank
1016 AM CDT Thu Sep 3 2026

Rest of today   Partly sunny. A slight chance of showers late this morning. Patchy fog late this morning. Highs in the upper 80s. South winds 5 to 10 mph. Chance of rain 20 percent.
Tonight   Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the mid 60s. Southeast winds 5 to 10 mph.
Friday   Patchy fog in the morning. Partly sunny. Humid with highs in the upper 80s. East winds 5 to 10 mph.
Friday night   Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the upper 60s. Southeast winds 5 to 10 mph.
Saturday   Partly sunny. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Humid with highs in the upper 80s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent.
Saturday night   Partly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the upper 60s. Chance of rain 50 percent.
Sunday   Partly sunny. A chance of showers, mainly in the morning. Highs in the mid 80s. Chance of rain 50 percent.
Sunday night and labor day   Showers likely with a chance of thunderstorms. Lows in the mid 60s. Highs in the lower 80s. Chance of rain 70 percent.
Monday night   Partly cloudy with a chance of thunderstorms in the evening, then mostly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Lows in the upper 60s. Chance of rain 50 percent.
Tuesday   Mostly cloudy with a slight chance of thunderstorms in the morning, then partly sunny in the afternoon. Highs around 80. Chance of rain 20 percent.
Tuesday night and wednesday   Partly cloudy. Lows in the upper 50s. Highs in the mid 70s.
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Bryce Anderson image
Bryce Anderson – DTN Meteorologist
More Rounds of Northern Storms Thursday
Posted at 5:38AM Thu Sep 3, 2026 CDT
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