County Forecast for Onida , SD
Change Zip Code: 
 
201800-
Sully-
Including the city of Onida
437 AM CST Tue Jan 20 2026

Today   Mostly cloudy. A slight chance of snow this morning, then snow likely this afternoon. Snow accumulation around an inch. Highs in the lower 20s. Southeast winds 5 to 10 mph, becoming southwest 10 to 15 mph this afternoon. Chance of snow 70 percent.
Tonight   Mostly cloudy. Not as cold with lows around 14. 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 in the morning, then areas of blowing snow in the afternoon. Little or no snow accumulation. Very windy with highs in the upper 20s. Temperature falling to around 18 in the afternoon. Northwest winds 30 to 40 mph with gusts up to 50 mph. Chance of snow 40 percent.
Wednesday night   Partly cloudy in the evening, then becoming mostly cloudy. Lows around 6 above. Northwest winds 15 to 20 mph.
Thursday   Partly sunny. Colder with highs around 13. Northwest winds 15 to 20 mph with gusts up to 30 mph.
Thursday night through friday night   Partly cloudy. Cold. Lows 15 below to 20 below zero. Highs 5 below to zero. Wind chill values as low as 35 below.
Saturday and saturday night   Partly cloudy. Highs 5 to 10 above. Lows 5 below to 10 below zero. Wind chill values as low as 25 below.
Sunday and sunday night   Partly cloudy. Highs 15 to 20. Lows around zero.
Monday   Partly sunny. Not as cold with highs in the mid 20s.
DTN Weather
Local Weather
Radar
County Forecast
State Forecast
DTN Weather Commentary
US Satellite
Current Surface Analysis
Wind Conditions
Today's Forecast Highs
Tonight's Forecast Lows
24 Hr Surface Forecast
Jet Stream Forecast
24 Hr Rainfall Estimate
24 Hr StormPath Accum
48 Hr StormPath Accum
6-10 Day Temp Forecast
6-10 Day Precip Forecast
Thunderstorm Outlook
US Drought Monitor
US Palmer Drought Index
US Crop Moisture Index
US Growing Degree Days
Soil Temperatures
Hurricane Tracking

DTN Weather Summary

Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Clippers Continue for Eastern US Over the Holiday Weekend
Posted at 11:55AM Fri Jan 16, 2026 CST
Click here to get your local weather emailed to you each day.
 
Copyright DTN. All rights reserved. Disclaimer.
Powered By DTN