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

Hazardous Weather Conditions

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

25°F

-4°C

Humidity 92%
Wind Speed NE 16 mph
Barometer 29.92 in (1015.6 mb)
Dewpoint 23°F (-5°C)
Visibility NA
Wind Chill12°F (-11°C)
Last update 14 Mar 11:56 pm CDT
Extended Forecast for

Grenville SD

Blizzard Warning March 15, 03:00am until March 15, 07:00pm
Winter Storm Warning March 15, 12:33am until March 15, 03:00am
Click here for hazard details and duration
Blizzard Warning
Winter Storm Warning
  •  
    Winter Storm Warning March 15, 12:33am until March 15, 03:00am

    NOW until 3:00am Sun

    Winter Storm Warning

  • Overnight

    Low: 23 °F

    Heavy Snow
    and Blowing
    Snow

  • Sunday

    Sunday: Snow, mainly before 10am. Widespread blowing snow, mainly before 11am. Temperature falling to around 10 by 9am. Windy, with a north wind 26 to 31 mph, with gusts as high as 46 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 17 °F⇓

    Snow and
    Blowing Snow
    then Areas
    Blowing Snow
    and Blustery

  • Sunday Night

    Sunday Night: Patchy blowing snow before 3am. Partly cloudy, with a low around -6. Wind chill values as low as -25. Blustery, with a north northwest wind 18 to 25 mph, with gusts as high as 39 mph.

    Low: -6 °F

    Patchy
    Blowing Snow
    and Blustery

  • Monday

    Monday: Sunny and cold, with a high near 8. Wind chill values as low as -26. Northwest wind 13 to 15 mph, with gusts as high as 24 mph.

    High: 8 °F

    Cold

  • Monday Night

    Monday Night: Partly cloudy, with a low around -3. Northwest wind 5 to 8 mph becoming south after midnight.

    Low: -3 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of snow before 1pm, then snow likely, possibly mixed with freezing rain. Mostly cloudy, with a high near 32. South wind 10 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.

    High: 32 °F

    Chance Snow
    then Wintry
    Mix Likely

  • Tuesday Night

    Tuesday Night: A slight chance of rain, snow, and freezing rain before 1am. Mostly cloudy, with a low around 24. South southwest wind 10 to 14 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 20%.

    Low: 24 °F

    Slight Chance
    Wintry Mix

  • Wednesday

    Wednesday: Partly sunny, with a high near 40. Southwest wind around 10 mph.

    High: 40 °F

    Partly Sunny

Detailed Forecast

Overnight
Snow. The snow could be heavy at times. Widespread blowing snow, mainly after 2am. Steady temperature around 23. Blustery, with a north northeast wind 23 to 26 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 5 to 9 inches possible.
Sunday
Snow, mainly before 10am. Widespread blowing snow, mainly before 11am. Temperature falling to around 10 by 9am. Windy, with a north wind 26 to 31 mph, with gusts as high as 46 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Sunday Night
Patchy blowing snow before 3am. Partly cloudy, with a low around -6. Wind chill values as low as -25. Blustery, with a north northwest wind 18 to 25 mph, with gusts as high as 39 mph.
Monday
Sunny and cold, with a high near 8. Wind chill values as low as -26. Northwest wind 13 to 15 mph, with gusts as high as 24 mph.
Monday Night
Partly cloudy, with a low around -3. Northwest wind 5 to 8 mph becoming south after midnight.
Tuesday
A chance of snow before 1pm, then snow likely, possibly mixed with freezing rain. Mostly cloudy, with a high near 32. South wind 10 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.
Tuesday Night
A slight chance of rain, snow, and freezing rain before 1am. Mostly cloudy, with a low around 24. South southwest wind 10 to 14 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 40. Southwest wind around 10 mph.
Wednesday Night
Partly cloudy, with a low around 34. Southwest wind around 10 mph.
Thursday
Mostly sunny, with a high near 50.
Thursday Night
Partly cloudy, with a low around 34.
Friday
Partly sunny, with a high near 59.
Friday Night
Mostly cloudy, with a low around 37.
Saturday
Partly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grenville SD
 45.46°N 97.4°W (Elev. 1821 ft)
Last Update:
12:08 am CDT Mar 15, 2026
Forecast Valid:
12am CDT Mar 15, 2026-6pm CDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation