POET Biorefining - Big Stone

	County Forecast for Big Stone City , SD

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290100-
Grant-
Including the city of Milbank
1202 PM CDT Thu May 28 2026

This afternoon   Partly sunny. Hot with highs in the lower 90s. Southeast winds 10 to 15 mph with gusts up to 25 mph.
Tonight   Mostly cloudy. Lows in the lower 60s. South winds 5 to 10 mph with gusts up to 20 mph.
Friday   Mostly cloudy. A slight chance of showers in the afternoon. Highs in the mid 80s. South winds 10 to 15 mph. Chance of rain 20 percent.
Friday night   Mostly cloudy. Lows in the upper 50s. Southeast winds 5 to 10 mph with gusts up to 20 mph.
Saturday   Mostly cloudy with a slight chance of showers in the morning, then partly sunny with a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Southeast winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 40 percent.
Saturday night   Mostly cloudy. A slight chance of showers in the evening, then a chance of thunderstorms after midnight. Lows in the upper 50s. Chance of rain 40 percent.
Sunday   Partly sunny. A chance of showers in the morning, then a slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 40 percent.
Sunday night   Mostly cloudy with a 20 percent chance of thunderstorms. Lows around 60.
Monday and monday night   Partly cloudy. A 30 percent chance of thunderstorms. Highs in the lower 80s. Lows in the upper 50s.
Tuesday   Partly sunny. A slight chance of thunderstorms in the afternoon. Highs around 80. Chance of rain 20 percent.
Tuesday night   Partly cloudy. A slight chance of showers after midnight. Lows in the upper 50s. Chance of rain 20 percent.
Wednesday   Partly sunny. A slight chance of showers in the morning, then a chance of thunderstorms in the afternoon. Highs around 80. Chance of rain 30 percent.

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Bryce Anderson – DTN Meteorologist

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Showers Continue in Southeast, Spread North Through Plains Thursday

Showers and thunderstorm continue over the Southeast on Thursday. Precip also through the Plains, and the Pacific Northwest. » More DTN Weather Commentary

Posted at 5:32AM Thu May 28, 2026 CDT

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