County Forecast for Big Stone City , SD
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291200-
Grant-
Including the city of Milbank
1137 PM CDT Tue Jul 28 2026

Rest of tonight   Mostly clear. Patchy smoke. Lows in the upper 60s. South winds around 5 mph.
Wednesday   Mostly sunny. Patchy smoke. Hot with highs in the lower 90s. South winds 5 to 10 mph.
Wednesday night   Mostly clear in the evening, then becoming partly cloudy. Patchy smoke. Humid with lows around 70. South winds 10 to 15 mph with gusts up to 25 mph.
Thursday   Patchy smoke in the morning. Partly sunny with a slight chance of thunderstorms in the morning, then mostly cloudy with showers with a chance of thunderstorms in the afternoon. Locally heavy rainfall possible in the afternoon. Humid with highs in the mid 80s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 80 percent.
Thursday night   Showers with a chance of thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. Humid with lows in the mid 60s. Southeast winds 5 to 10 mph, becoming northeast with gusts up to 20 mph after midnight. Chance of rain 90 percent.
Friday   Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then partly sunny with a chance of thunderstorms in the afternoon. Highs around 80. Chance of rain 40 percent.
Friday night through sunday night   Mostly clear. Lows in the lower 60s. Highs in the lower 80s.
Monday   Partly sunny. Highs in the mid 80s.
Monday night   Mostly clear with a chance of thunderstorms in the evening, then partly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Lows in the lower 60s. Chance of rain 40 percent.
Tuesday   Partly sunny with a 20 percent chance of showers. Highs in the mid 70s.
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Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Front Stalling Wednesday
Posted at 11:58AM Tue Jul 28, 2026 CDT
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