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

Severe Thunderstorms in the Central U.S.; Record Temperatures Likely for Eastern U.S.

Several rounds of severe thunderstorms and heavy rain are forecast from the southern Plains to the Midwest through Friday. Large hail, damaging wind gusts, and tornadoes are possible. A significant warm-up is expected for much of the Eastern U.S. into next week. Several daily record temperature records are likely to be broken. Fire weather concerns will return to the central/southern High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

31°F

-1°C

Humidity 100%
Wind Speed Calm
Barometer 29.93 in (1014.3 mb)
Dewpoint 31°F (-1°C)
Visibility NA
Last update 5 Mar 2:56 am CST
Extended Forecast for

Grenville SD

Dense Fog Advisory March 5, 03:29am until March 5, 10:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory March 5, 03:29am until March 5, 10:00am

    NOW until 10:00am Thu

    Dense Fog Advisory

  • Overnight

    Low: 32 °F

    Patchy Dense
    Fog

  • Thursday

    Thursday: Areas of dense fog before 11am. Otherwise, partly sunny, with a high near 55. Breezy, with a south southeast wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 55 °F

    Areas Dense
    Fog then
    Partly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: A chance of rain after midnight. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 32. South southeast wind 10 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 50%.

    Low: 32 °F

    Chance Rain
    and Patchy
    Fog

  • Friday

    Friday: Rain, snow, and sleet likely before 3pm, then snow and freezing rain likely. Patchy blowing snow after 4pm. Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 41. Breezy, with a north northwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 70%. New ice accumulation of less than a 0.1 of an inch possible. New snow and sleet accumulation of less than a half inch possible.

    High: 41 °F

    Wintry Mix
    Likely and
    Patchy
    Blowing Snow

  • Friday Night

    Friday Night: A chance of snow and freezing rain before 9pm, then a chance of snow. Patchy blowing snow before 10pm. Mostly cloudy, with a low around 21. Blustery, with a northwest wind 14 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

    Low: 21 °F

    Chance Wintry
    Mix and
    Patchy
    Blowing Snow

  • Saturday

    Saturday: Sunny, with a high near 40. Northwest wind 13 to 18 mph becoming southwest in the afternoon. Winds could gust as high as 28 mph.

    High: 40 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 34. Breezy, with a southwest wind 16 to 20 mph, with gusts as high as 31 mph.

    Low: 34 °F

    Partly Cloudy
    and Breezy

  • Sunday

    Sunday: Mostly sunny, with a high near 52. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 52 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

Detailed Forecast

Overnight
Patchy dense fog. Otherwise, mostly cloudy, with a low around 32. East southeast wind 6 to 8 mph.
Thursday
Areas of dense fog before 11am. Otherwise, partly sunny, with a high near 55. Breezy, with a south southeast wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Thursday Night
A chance of rain after midnight. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 32. South southeast wind 10 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 50%.
Friday
Rain, snow, and sleet likely before 3pm, then snow and freezing rain likely. Patchy blowing snow after 4pm. Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 41. Breezy, with a north northwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 70%. New ice accumulation of less than a 0.1 of an inch possible. New snow and sleet accumulation of less than a half inch possible.
Friday Night
A chance of snow and freezing rain before 9pm, then a chance of snow. Patchy blowing snow before 10pm. Mostly cloudy, with a low around 21. Blustery, with a northwest wind 14 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Saturday
Sunny, with a high near 40. Northwest wind 13 to 18 mph becoming southwest in the afternoon. Winds could gust as high as 28 mph.
Saturday Night
Partly cloudy, with a low around 34. Breezy, with a southwest wind 16 to 20 mph, with gusts as high as 31 mph.
Sunday
Mostly sunny, with a high near 52. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 36. Southwest wind around 16 mph, with gusts as high as 25 mph.
Monday
Partly sunny, with a high near 50.
Monday Night
A chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
Tuesday
A chance of snow. Partly sunny, with a high near 37. Chance of precipitation is 40%.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 18. Chance of precipitation is 30%.
Wednesday
A slight chance of snow. Mostly sunny, with a high near 31. Chance of precipitation is 20%.
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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:
2:36 am CST Mar 5, 2026
Forecast Valid:
3am CST Mar 5, 2026-6pm CDT Mar 11, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

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Chance of Precipitation