County Forecast for Big Stone City , SD
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140300-
Grant-
Including the city of Milbank
236 PM CDT Sat Jun 13 2026

This afternoon   Partly sunny and not as warm. Near steady temperature in the upper 60s. Northwest winds 15 to 20 mph with gusts up to 30 mph.
Tonight   Mostly cloudy with a slight chance of showers in the evening, then mostly clear after midnight. Lows in the upper 40s. Northwest winds 15 to 20 mph with gusts up to 30 mph, diminishing to 5 to 10 mph with gusts up to 20 mph after midnight. Chance of rain 20 percent.
Sunday   Sunny. Highs in the lower 70s. Northwest winds 10 to 15 mph with gusts up to 25 mph.
Sunday night   Mostly clear. Lows around 50. West winds 10 to 15 mph.
Monday   Partly sunny. A slight chance of thunderstorms in the afternoon. Highs in the mid 70s. West winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 20 percent.
Monday night   Mostly cloudy with a slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows around 50. Chance of rain 20 percent.
Tuesday   Partly sunny. Highs in the lower 70s.
Tuesday night   Partly cloudy in the evening, then mostly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Lows in the mid 50s. Chance of rain 50 percent.
Wednesday   Showers likely with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 80 percent.
Wednesday night   Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the lower 50s. Chance of rain 30 percent.
Thursday   Partly sunny. A slight chance of thunderstorms in the afternoon. Highs around 70. Chance of rain 20 percent.
Thursday night   Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 50s.
Juneteenth   Mostly sunny. A slight chance of showers in the morning, then a slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 20 percent.
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Bryce Anderson – DTN Meteorologist
Two Fronts Producing Precipitation This Weekend

A cold front duo threatens severe storms, flooding, and below-normal temperatures through the weekend. » More DTN Weather Commentary

Posted at 11:59AM Fri Jun 12, 2026 CDT
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