National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Cold and Gusty Winds Anticipated This Weekend

A significant arctic outbreak will bring frigid temperatures and dangerously cold wind chills to the Northeast and Mid-Atlantic this weekend. Strong winds which could produce tree damage and power outages, and periods of snow squalls are also possible. Relief from this cold and a warming trend is forecast to commence by the beginning to middle of next week. Read More >

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

Breezy

37°F

3°C

Humidity 82%
Wind Speed NW 23 G 32 mph
Barometer 29.89 in (1013.0 mb)
Dewpoint 32°F (0°C)
Visibility NA
Wind Chill26°F (-3°C)
Last update 6 Feb 12:56 am CST
Extended Forecast for

Grenville SD

  • Overnight

    Overnight: A chance of sprinkles before 2am, then a chance of sprinkles and flurries between 2am and 4am, then a chance of flurries after 4am. Mostly cloudy, with a steady temperature around 35. Breezy, with a north northwest wind 21 to 23 mph, with gusts as high as 32 mph.

    Low: 35 °F

    Chance
    Sprinkles/Flurries
    and Breezy

  • Friday

    Friday: A chance of flurries before 9am. Cloudy through mid morning, then gradual clearing, with a temperature falling to around 18 by 5pm. Blustery, with a north wind 16 to 21 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 29 °F⇓

    Chance
    Flurries and
    Blustery then
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 9. North northeast wind 7 to 13 mph becoming south southeast after midnight.

    Low: 9 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 34. South southeast wind 11 to 18 mph, with gusts as high as 29 mph.

    High: 34 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 22. South wind 7 to 10 mph becoming northwest after midnight.

    Low: 22 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 42. West northwest wind 7 to 10 mph becoming southwest in the afternoon.

    High: 42 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 32. Southwest wind around 11 mph.

    Low: 32 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 47. Southwest wind around 10 mph becoming east northeast in the afternoon.

    High: 47 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 28. East northeast wind 10 to 13 mph becoming north after midnight.

    Low: 28 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of sprinkles before 2am, then a chance of sprinkles and flurries between 2am and 4am, then a chance of flurries after 4am. Mostly cloudy, with a steady temperature around 35. Breezy, with a north northwest wind 21 to 23 mph, with gusts as high as 32 mph.
Friday
A chance of flurries before 9am. Cloudy through mid morning, then gradual clearing, with a temperature falling to around 18 by 5pm. Blustery, with a north wind 16 to 21 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 32 mph.
Friday Night
Partly cloudy, with a low around 9. North northeast wind 7 to 13 mph becoming south southeast after midnight.
Saturday
Partly sunny, with a high near 34. South southeast wind 11 to 18 mph, with gusts as high as 29 mph.
Saturday Night
Partly cloudy, with a low around 22. South wind 7 to 10 mph becoming northwest after midnight.
Sunday
Mostly sunny, with a high near 42. West northwest wind 7 to 10 mph becoming southwest in the afternoon.
Sunday Night
Mostly cloudy, with a low around 32. Southwest wind around 11 mph.
Monday
Mostly cloudy, with a high near 47. Southwest wind around 10 mph becoming east northeast in the afternoon.
Monday Night
Mostly cloudy, with a low around 28. East northeast wind 10 to 13 mph becoming north after midnight.
Tuesday
Mostly cloudy, with a high near 36.
Tuesday Night
Mostly cloudy, with a low around 20.
Wednesday
A slight chance of snow. Mostly cloudy, with a high near 32. Chance of precipitation is 20%.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 19. Chance of precipitation is 30%.
Thursday
A chance of snow. Partly sunny, with a high near 35. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grenville SD
 45.46°N 97.37°W (Elev. 1795 ft)
Last Update:
12:36 am CST Feb 6, 2026
Forecast Valid:
1am CST Feb 6, 2026-6pm CST Feb 12, 2026
 
Forecast Discussion
 
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Additional Resources

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Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation