POET Biorefining - Big Stone

	County Forecast for Big Stone City , SD

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070000-
Grant-
Including the city of Milbank
1121 AM CDT Sun Sep 6 2026

Rest of today   Mostly cloudy. Thunderstorms likely late this morning, then a chance of thunderstorms this afternoon. Highs in the mid 80s. Southeast winds 10 to 15 mph. Chance of rain 70 percent.
Tonight   Mostly cloudy. A chance of thunderstorms in the evening, then a chance of showers after midnight. Humid with lows in the mid 60s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 40 percent.
Labor day   Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. A slight chance of thunderstorms in the afternoon. Humid with highs in the mid 80s. Southeast winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 50 percent.
Monday night   Showers likely with a chance of thunderstorms in the evening, then a slight chance of thunderstorms after midnight. Humid with lows in the upper 60s. South winds 15 to 20 mph with gusts up to 40 mph. Chance of rain 70 percent.
Tuesday   Partly sunny. Humid with highs in the lower 80s. West winds 15 to 20 mph, becoming northwest 10 to 15 mph in the afternoon.
Tuesday night and wednesday   Mostly clear. Lows in the upper 50s. Highs in the mid 70s.
Wednesday night and thursday   Mostly clear. Lows in the mid 50s. Highs around 80.
Thursday night and friday   Mostly clear. Lows in the upper 50s. Highs in the lower 80s.
Friday night   Mostly clear. A slight chance of thunderstorms after midnight. Lows in the upper 50s. Chance of rain 20 percent.
Saturday   Partly sunny. A slight chance of thunderstorms in the morning. Highs in the mid 70s. Chance of rain 20 percent.

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Bryce Anderson – DTN Meteorologist

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Hot and Dry for Central US Labor Day Weekend

Hot, humid conditions persist through the holiday weekend with scattered showers and thunderstorms likely. » More DTN Weather Commentary

Posted at 11:59AM Fri Sep 4, 2026 CDT

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