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

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

-6°F

-21°C

Humidity 78%
Wind Speed S 3 mph
Barometer 30.28 in (1030.6 mb)
Dewpoint -11°F (-24°C)
Visibility NA
Last update 25 Jan 1:56 am CST
Extended Forecast for

Grenville SD

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

    Overnight: A chance of flurries before 3am, then a slight chance of snow between 3am and 5am, then a chance of flurries after 5am.  Mostly cloudy, with a steady temperature around -2. Light and variable wind becoming northeast around 6 mph.  Chance of precipitation is 20%.

    Low: -2 °F

    Slight Chance
    Snow

  • Sunday

    Sunday: A chance of flurries with a slight chance of snow before 7am, then a slight chance of snow between 7am and 8am.  Partly sunny and cold, with a temperature falling to around -10 by 5pm. Wind chill values as low as -29. North northeast wind 7 to 13 mph becoming northwest in the afternoon.  Chance of precipitation is 20%.

    High: -4 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around -16. Wind chill values as low as -34. Northwest wind 8 to 13 mph becoming southwest after midnight.

    Low: -16 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 16. Wind chill values as low as -31. Breezy, with a southwest wind 14 to 21 mph, with gusts as high as 34 mph.

    High: 16 °F

    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around -2. Northwest wind 16 to 18 mph, with gusts as high as 29 mph.

    Low: -2 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny and cold, with a high near 7. Northwest wind 9 to 15 mph, with gusts as high as 24 mph.

    High: 7 °F

    Cold

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around -1. West wind around 10 mph.

    Low: -1 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny and cold, with a high near 8. North northwest wind around 10 mph.

    High: 8 °F

    Cold

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around -5. West wind around 8 mph.

    Low: -5 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of flurries before 3am, then a slight chance of snow between 3am and 5am, then a chance of flurries after 5am. Mostly cloudy, with a steady temperature around -2. Light and variable wind becoming northeast around 6 mph. Chance of precipitation is 20%.
Sunday
A chance of flurries with a slight chance of snow before 7am, then a slight chance of snow between 7am and 8am. Partly sunny and cold, with a temperature falling to around -10 by 5pm. Wind chill values as low as -29. North northeast wind 7 to 13 mph becoming northwest in the afternoon. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around -16. Wind chill values as low as -34. Northwest wind 8 to 13 mph becoming southwest after midnight.
Monday
Mostly sunny, with a high near 16. Wind chill values as low as -31. Breezy, with a southwest wind 14 to 21 mph, with gusts as high as 34 mph.
Monday Night
Partly cloudy, with a low around -2. Northwest wind 16 to 18 mph, with gusts as high as 29 mph.
Tuesday
Mostly sunny and cold, with a high near 7. Northwest wind 9 to 15 mph, with gusts as high as 24 mph.
Tuesday Night
Partly cloudy, with a low around -1. West wind around 10 mph.
Wednesday
Mostly sunny and cold, with a high near 8. North northwest wind around 10 mph.
Wednesday Night
Partly cloudy, with a low around -5. West wind around 8 mph.
Thursday
Partly sunny and cold, with a high near 9.
Thursday Night
Mostly cloudy, with a low around -7.
Friday
A slight chance of snow. Mostly sunny and cold, with a high near 8. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around -3.
Saturday
A slight chance of snow. Mostly sunny, with a high near 17. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Grenville SD
 45.46°N 97.37°W (Elev. 1795 ft)
2:36 am CST Jan 25, 2026
2am 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

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