County Forecast for Big Stone City , SD
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011400-
Grant-
Including the city of Milbank
122 AM CDT Thu Oct 1 2026

Rest of tonight   Mostly cloudy. Lows in the lower 50s. North winds 10 to 15 mph with gusts up to 25 mph.
Thursday   Partly sunny. Much cooler with highs in the lower 60s. North winds 10 to 15 mph with gusts up to 25 mph.
Thursday night   Mostly clear. Cooler with lows in the lower 40s. Northwest winds 5 to 10 mph.
Friday   Partly sunny. Highs around 60. Southwest winds around 5 mph, becoming southeast in the afternoon.
Friday night   Mostly cloudy in the evening, then clearing. Lows in the upper 40s. Southeast winds 5 to 10 mph, increasing to south 15 to 20 mph after midnight.
Saturday   Partly sunny. A slight chance of showers in the afternoon. Highs in the upper 60s. Chance of rain 20 percent.
Saturday night and sunday   Mostly clear. Lows in the upper 40s. Highs in the lower 60s.
Sunday night and monday   Mostly clear. Lows in the mid 40s. Highs in the mid 60s.
Monday night through tuesday night   Partly cloudy. Lows in the mid 50s. Highs in the lower 70s.
Wednesday   Mostly sunny. Highs around 70.
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DTN Weather Summary

Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Heavy Rain Leaving Plains, Continuing in Midwest Thursday
Posted at 12:13PM Wed Sep 30, 2026 CDT
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