County Forecast for Onida , SD
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131600-
Sully-
Including the city of Onida
343 AM CDT Sun Jul 13 2025

Today   Mostly sunny. Hot with highs around 90. South winds 5 to 10 mph, becoming west with gusts up to 20 mph this morning, then becoming north 10 to 15 mph with gusts up to 25 mph this afternoon.
Tonight   Clear. Lows in the mid 60s. Northeast winds 5 to 10 mph with gusts up to 20 mph, becoming southeast after midnight.
Monday   Mostly sunny. Hot with highs in the upper 90s. South winds 15 to 20 mph.
Monday night   Mostly cloudy. A chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Lows in the mid 60s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 50 percent.
Tuesday   Partly sunny. A chance of showers with a slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Not as warm with highs in the lower 80s. Northeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 50 percent.
Tuesday night   Mostly cloudy. A chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Cooler with lows in the mid 50s. Chance of rain 50 percent.
Wednesday   Mostly cloudy with a chance of showers in the morning, then partly sunny in the afternoon. Not as warm with highs in the lower 70s. Chance of rain 50 percent.
Wednesday night   Partly cloudy with a 20 percent chance of showers. Lows in the lower 50s.
Thursday   Partly sunny. Highs in the mid 70s.
Thursday night   Partly cloudy. A slight chance of showers in the evening, then a slight chance of thunderstorms after midnight. Lows in the upper 50s. Chance of rain 20 percent.
Friday   Partly sunny. A slight chance of showers in the morning. Highs in the lower 80s. Chance of rain 20 percent.
Friday night   Partly cloudy with a 20 percent chance of thunderstorms. Lows around 60.
Saturday   Partly sunny. Highs in the lower 80s.
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Bryce Anderson image
Bryce Anderson – DTN Meteorologist
System Sweeping Through Country This Weekend
Posted at 12:08PM Fri Jul 11, 2025 CDT
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