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

Dangerous Winter Storm Through Monday Morning

A dangerous winter storm will unfold tonight through Monday morning bringing heavy snowfall (possibly record-breaking for some), ice, and blizzard conditions. Make appropriate preparations, as power outages will be possible. Travel will become dangerous, if not impossible. Read More >

Hazardous Weather Conditions

Current conditions at

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

Overcast

30°F

-1°C

Humidity 100%
Wind Speed NE 15 G 30 mph
Barometer 29.50 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 15 Mar 5:55 am CDT
Extended Forecast for

Spring Grove MN

Blizzard Warning March 15, 10:00am until March 16, 07:00am
Winter Storm Warning March 15, 06:04am until March 15, 10:00am
Click here for hazard details and duration
Blizzard Warning
...
  •  
    Winter Storm Warning March 15, 06:04am until March 15, 10:00am

    NOW until 10:00am Sun

    Winter Storm Warning

  • Today

    High: 30 °F

    Snow/Sleet
    and Patchy
    Blowing Snow

  • Tonight

    Tonight: Snow. The snow could be heavy at times. Widespread blowing snow, mainly after 11pm. Low around 10. Wind chill values as low as -6. Windy, with a north wind 26 to 30 mph, with gusts as high as 48 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.

    Low: 10 °F

    Heavy Snow
    and Blowing
    Snow

  • Monday

    Monday: A 30 percent chance of snow before 1pm. Patchy blowing snow before 1pm. Cloudy, with a high near 14. Wind chill values as low as -11. Blustery, with a northwest wind 20 to 25 mph, with gusts as high as 45 mph.

    High: 14 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Monday Night

    Monday Night: Partly cloudy, with a low around -4. Wind chill values as low as -17. Blustery, with a northwest wind 9 to 17 mph, with gusts as high as 33 mph.

    Low: -4 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: A 20 percent chance of snow after 1pm. Mostly sunny, with a high near 22. West wind 6 to 8 mph becoming south in the afternoon.

    High: 22 °F

    Sunny then
    Slight Chance
    Snow

  • Tuesday Night

    Tuesday Night: Snow, mainly before 1am. Low around 15. South wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 15 °F

    Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 40. Southwest wind around 7 mph.

    High: 40 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29. Southwest wind around 6 mph.

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

Today
Sleet, possibly mixed with snow, becoming all snow after 8am. The snow and sleet could be heavy at times. Some thunder is also possible. Patchy blowing snow after 8am. High near 30. Blustery, with a north wind 16 to 24 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. Total daytime snow and sleet accumulation of 1 to 3 inches possible.
Tonight
Snow. The snow could be heavy at times. Widespread blowing snow, mainly after 11pm. Low around 10. Wind chill values as low as -6. Windy, with a north wind 26 to 30 mph, with gusts as high as 48 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.
Monday
A 30 percent chance of snow before 1pm. Patchy blowing snow before 1pm. Cloudy, with a high near 14. Wind chill values as low as -11. Blustery, with a northwest wind 20 to 25 mph, with gusts as high as 45 mph.
Monday Night
Partly cloudy, with a low around -4. Wind chill values as low as -17. Blustery, with a northwest wind 9 to 17 mph, with gusts as high as 33 mph.
Tuesday
A 20 percent chance of snow after 1pm. Mostly sunny, with a high near 22. West wind 6 to 8 mph becoming south in the afternoon.
Tuesday Night
Snow, mainly before 1am. Low around 15. South wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Wednesday
Mostly sunny, with a high near 40. Southwest wind around 7 mph.
Wednesday Night
Partly cloudy, with a low around 29. Southwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 46. West wind around 6 mph.
Thursday Night
Mostly cloudy, with a low around 33. Southwest wind 5 to 7 mph.
Friday
Mostly cloudy, with a high near 53. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 31. Northwest wind around 10 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 45. North wind around 10 mph, with gusts as high as 21 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Spring Grove MN
 43.56°N 91.63°W
Last Update:
5:51 am CDT Mar 15, 2026
Forecast Valid:
6am CDT Mar 15, 2026-6pm CDT Mar 21, 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