County Forecast for Big Stone City , SD
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110300-
Grant-
Including the city of Milbank
236 PM CDT Wed Jun 10 2026

This afternoon   Mostly sunny with a 20 percent chance of thunderstorms. Not as warm. Near steady temperature in the upper 70s. West winds 15 to 20 mph with gusts up to 35 mph.
Tonight   Clear in the evening, then becoming mostly cloudy. Less humid with lows in the mid 50s. West winds 15 to 20 mph with gusts up to 30 mph, becoming southwest 5 to 10 mph with gusts up to 20 mph after midnight.
Thursday   Mostly cloudy with a chance of showers in the morning, then partly sunny with a slight chance of thunderstorms in the afternoon. Not as warm with highs in the lower 70s. West winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 40 percent.
Thursday night   Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 50s. West winds 15 to 20 mph. Gusts up to 35 mph in the evening.
Friday   Mostly sunny. Warmer with highs in the lower 80s. West winds 15 to 20 mph with gusts up to 30 mph.
Friday night   Partly cloudy. A slight chance of thunderstorms in the evening. Lows in the mid 50s. Chance of rain 20 percent.
Saturday   Partly sunny. Not as warm with highs in the lower 70s.
Saturday night   Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s.
Sunday   Partly sunny. Highs in the lower 70s.
Sunday night   Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 50s.
Monday   Partly sunny. A slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 20 percent.
Monday night   Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 50s.
Tuesday   Partly sunny. A slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 20 percent.
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Bryce Anderson – DTN Meteorologist
More Rounds of Severe Storms in Midwest Thursday

Frontal system brings multiple rounds of severe storms to Midwest Wednesday and Thursday; all hazards possible. » More DTN Weather Commentary

Posted at 12:07PM Wed Jun 10, 2026 CDT
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