County Forecast for Onida , SD
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200300-
Sully-
Including the city of Onida
137 PM CST Mon Jan 19 2026

This afternoon   Mostly cloudy. Much colder with highs around 15. Northwest winds 10 to 15 mph with gusts up to 25 mph.
Tonight   Mostly cloudy. Lows around 2 above. Northwest winds around 5 mph, becoming south after midnight.
Tuesday   Cloudy. A slight chance of snow in the morning, then a chance of snow in the afternoon. Snow accumulation around an inch possible. Not as cold with highs in the mid 20s. Southeast winds 5 to 10 mph, becoming southwest 10 to 15 mph in the afternoon. Chance of snow 50 percent.
Tuesday night   Mostly cloudy and not as cold. Near steady temperature around 19. West winds 10 to 15 mph with gusts up to 25 mph.
Wednesday   Partly sunny. A chance of snow in the morning. Patchy blowing snow. Little or no snow accumulation. Very windy with highs in the upper 20s. Temperature falling to around 18 in the afternoon. Northwest winds 25 to 35 mph with gusts up to 45 mph. Chance of snow 40 percent.
Wednesday night   Partly cloudy. Colder with lows around 5 above.
Thursday   Partly sunny. Colder with highs 10 to 15.
Thursday night through friday night   Partly cloudy. Cold. Lows around 15 below. Highs 5 below to zero. Wind chill values as low as 30 below.
Saturday and saturday night   Partly cloudy. Highs around 10 above. Lows 5 below to zero. Wind chill values as low as 30 below.
Sunday   Partly sunny. Not as cold with highs in the lower 20s.
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Bryce Anderson – DTN Meteorologist
Clippers Continue for Eastern US Over the Holiday Weekend
Posted at 11:55AM Fri Jan 16, 2026 CST
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