POET Biorefining - Big Stone

	County Forecast for Big Stone City , SD

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101500-
Grant-
Including the city of Milbank
237 AM CDT Mon Aug 10 2026

Rest of tonight   Partly cloudy. Near steady temperature around 60. North winds 5 to 10 mph.
Monday   Partly sunny. Highs in the lower 80s. Southeast winds 5 to 10 mph.
Monday night   Partly cloudy with a slight chance of thunderstorms in the evening, then mostly cloudy with a chance of thunderstorms after midnight. Humid with lows in the lower 60s. Southeast winds 5 to 10 mph. Chance of rain 50 percent.
Tuesday   Mostly sunny. Humid with highs in the lower 80s. East winds around 5 mph.
Tuesday night   Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms. A chance of showers after midnight. Humid with lows in the lower 60s. Southeast winds around 5 mph, becoming northeast after midnight. Chance of rain 40 percent.
Wednesday   Partly sunny. Highs in the upper 70s.
Wednesday night   Mostly cloudy with a 20 percent chance of thunderstorms. Lows in the upper 50s.
Thursday and thursday night   Mostly cloudy. Highs in the mid 70s. Lows in the mid 50s.
Friday   Mostly cloudy. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 40 percent.
Friday night   A slight chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the upper 50s. Chance of rain 50 percent.
Saturday   Mostly cloudy with a 40 percent chance of showers. Highs in the lower 70s.
Saturday night and sunday   Mostly cloudy. A 20 percent chance of showers. Lows in the mid 50s. Highs in the lower 70s.

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Bryce Anderson – DTN Meteorologist

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Damaging Storms Possible in the Upper Midwest This Afternoon

Scattered showers, storms for the Upper Midwest. Heavier rain Friday night into Saturday morning for portions of the Delta. » More DTN Weather Commentary

Posted at 12:27PM Fri Aug 7, 2026 CDT

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