County Forecast for Onida , SD
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031900-
Sully-
Including the city of Onida
537 AM CST Tue Feb 3 2026

Today   Cloudy. A chance of flurries this morning. Highs in the mid 30s. Southeast winds around 5 mph, becoming west around 5 mph this afternoon.
Tonight   Mostly cloudy. A slight chance of freezing rain and snow in the evening, then a chance of flurries after midnight. Near steady temperature in the upper 20s. Northwest winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 20 percent.
Wednesday   Mostly cloudy in the morning, then becoming partly sunny. Highs in the mid 30s. Northwest winds 10 to 15 mph, becoming west 5 to 10 mph in the afternoon.
Wednesday night   Mostly cloudy. Lows in the upper 20s. Temperature rising into the lower 30s after midnight. South winds 10 to 15 mph, becoming west after midnight.
Thursday   Mostly sunny. Not as cool with highs in the mid 50s. Northwest winds around 15 mph with gusts up to 30 mph.
Thursday night   Mostly clear. Lows around 30.
Friday through sunday night   Partly cloudy. Highs in the mid 40s. Lows in the mid 20s.
Monday   Partly sunny. Highs in the lower 50s.
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Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Southern Storm Tuesday
Posted at 5:30AM Tue Feb 3, 2026 CST
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