Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East; Severe Storm Threat in the Gulf States Sunday

A significant winter storm is underway, bringing widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Extremely cold air will follow, prolonging dangerous travel and infrastructure impacts into next week. Severe thunderstorms may produce damaging gusts and tornadoes across the eastern Gulf Coast states Sunday morning and afternoon. Read More >

Current conditions at

ONIDAMUNC (K98D)

Lat: 44.7°NLon: 100.1°WElev: 1874ft.

Mostly Cloudy

-6°F

-21°C

Humidity 77%
Wind Speed N 18 mph
Barometer 30.37 in
Dewpoint -11°F (-24°C)
Visibility 10.00 mi
Wind Chill-29°F (-34°C)
Last update 25 Jan 10:15 am CST
Extended Forecast for

Onaka SD

Cold Weather Advisory January 25, 06:00pm until January 26, 09:00am
Click here for hazard details and duration
Cold Weather Advisory
  • Today

    Today: Mostly sunny and cold, with a high near -2. Wind chill values as low as -30. Northwest wind 11 to 16 mph.

    High: -2 °F

    Cold

  • Tonight

    Tonight: Mostly clear, with a low around -13. Wind chill values as low as -30. Northwest wind 9 to 15 mph becoming southwest after midnight. Winds could gust as high as 23 mph.

    Low: -13 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 24. Wind chill values as low as -26. Breezy, with a southwest wind 16 to 22 mph becoming west northwest in the afternoon. Winds could gust as high as 32 mph.

    High: 24 °F

    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 0. Northwest wind 14 to 18 mph, with gusts as high as 26 mph.

    Low: 0 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 13. Northwest wind 9 to 14 mph.

    High: 13 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 2. West wind around 9 mph.

    Low: 2 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 17. North wind 9 to 11 mph.

    High: 17 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 0. North northeast wind around 9 mph becoming southeast after midnight.

    Low: 0 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of snow before noon.  Partly sunny, with a high near 14. East northeast wind 9 to 13 mph.  Chance of precipitation is 20%.

    High: 14 °F

    Slight Chance
    Snow then
    Partly Sunny

Detailed Forecast

Today
Mostly sunny and cold, with a high near -2. Wind chill values as low as -30. Northwest wind 11 to 16 mph.
Tonight
Mostly clear, with a low around -13. Wind chill values as low as -30. Northwest wind 9 to 15 mph becoming southwest after midnight. Winds could gust as high as 23 mph.
Monday
Mostly sunny, with a high near 24. Wind chill values as low as -26. Breezy, with a southwest wind 16 to 22 mph becoming west northwest in the afternoon. Winds could gust as high as 32 mph.
Monday Night
Mostly clear, with a low around 0. Northwest wind 14 to 18 mph, with gusts as high as 26 mph.
Tuesday
Sunny, with a high near 13. Northwest wind 9 to 14 mph.
Tuesday Night
Mostly cloudy, with a low around 2. West wind around 9 mph.
Wednesday
Mostly sunny, with a high near 17. North wind 9 to 11 mph.
Wednesday Night
Mostly cloudy, with a low around 0. North northeast wind around 9 mph becoming southeast after midnight.
Thursday
A slight chance of snow before noon. Partly sunny, with a high near 14. East northeast wind 9 to 13 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of snow after midnight. Mostly cloudy, with a low around -5. Chance of precipitation is 20%.
Friday
A slight chance of snow. Mostly sunny, with a high near 11. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around -2.
Saturday
A slight chance of snow. Partly sunny, with a high near 21. Chance of precipitation is 20%.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Onaka SD
 45.19°N 99.45°W (Elev. 1850 ft)
9:37 am CST Jan 25, 2026
10am CST Jan 25, 2026-6pm CST Jan 31, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database