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

Winter Storm to Impact the Region Sunday Afternoon - Monday Morning

A strong winter storm moves through the region Sunday afternoon through Monday morning. The combination of moderate to heavy snow, strong northwest winds, and falling temperatures may lead to hazardous travel conditions for much of the area. The greatest impacts in Wisconsin are expected to be along and north of I-90, while blizzard conditions are possible west of the Mississippi River. Read More >

Hazardous Weather Conditions

Current conditions at

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

Freezing Fog

32°F

0°C

Humidity 100%
Wind Speed S 9 mph
Barometer 29.88 in
Dewpoint 32°F (0°C)
Visibility 0.25 mi
Wind Chill24°F (-4°C)
Last update 27 Dec 5:15 am CST
Extended Forecast for

Decorah IA

Winter Weather Advisory December 28, 03:00pm until December 29, 12:00pm
Dense Fog Advisory December 27, 05:38am until December 27, 12:00pm
Click here for hazard details and duration
Winter Weather Advisory
Dense Fog Advisory
  •  
    Dense Fog Advisory December 27, 05:38am until December 27, 12:00pm

    NOW until 12:00pm Sat

    Dense Fog Advisory

  • Today

    High: 44 °F

    Dense Fog

  • Tonight

    Tonight: A 20 percent chance of rain before 3am. Cloudy, with a steady temperature around 42. Southeast wind 5 to 7 mph becoming calm in the evening.

    Low: 42 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: Rain before 1pm, then rain and snow between 1pm and 3pm, then snow after 3pm. Patchy blowing snow after 4pm. Temperature falling to around 24 by 5pm. Breezy, with a northwest wind 5 to 10 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 41 °F⇓

    Rain then
    Rain/Snow and
    Patchy
    Blowing Snow

  • Sunday Night

    Sunday Night: Snow. Patchy blowing snow. Low around 8. Wind chill values as low as -12. Blustery, with a northwest wind 22 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 8 °F

    Snow and
    Patchy
    Blowing Snow

  • Monday

    Monday: A 30 percent chance of snow before noon. Patchy blowing snow before noon. Partly sunny, with a high near 14. Blustery, with a northwest wind 16 to 23 mph, with gusts as high as 38 mph.

    High: 14 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Monday Night

    Monday Night: Mostly clear, with a low around 3. Northwest wind 5 to 13 mph, with gusts as high as 24 mph.

    Low: 3 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 27. Southwest wind 5 to 10 mph, with gusts as high as 18 mph.

    High: 27 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 15. Northwest wind around 9 mph.

    Low: 15 °F

    Mostly Cloudy

Detailed Forecast

Today
Widespread dense fog, mainly before 10am. Otherwise, cloudy, with a high near 44. Southeast wind 7 to 11 mph, with gusts as high as 22 mph.
Tonight
A 20 percent chance of rain before 3am. Cloudy, with a steady temperature around 42. Southeast wind 5 to 7 mph becoming calm in the evening.
Sunday
Rain before 1pm, then rain and snow between 1pm and 3pm, then snow after 3pm. Patchy blowing snow after 4pm. Temperature falling to around 24 by 5pm. Breezy, with a northwest wind 5 to 10 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Sunday Night
Snow. Patchy blowing snow. Low around 8. Wind chill values as low as -12. Blustery, with a northwest wind 22 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Monday
A 30 percent chance of snow before noon. Patchy blowing snow before noon. Partly sunny, with a high near 14. Blustery, with a northwest wind 16 to 23 mph, with gusts as high as 38 mph.
Monday Night
Mostly clear, with a low around 3. Northwest wind 5 to 13 mph, with gusts as high as 24 mph.
Tuesday
Partly sunny, with a high near 27. Southwest wind 5 to 10 mph, with gusts as high as 18 mph.
Tuesday Night
Mostly cloudy, with a low around 15. Northwest wind around 9 mph.
Wednesday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 24. Northwest wind around 10 mph, with gusts as high as 18 mph.
Wednesday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 0. Northwest wind around 8 mph.
New Year's Day
Sunny, with a high near 9. Northwest wind 7 to 9 mph.
Thursday Night
Mostly clear, with a low around -4. West wind 3 to 6 mph.
Friday
Sunny, with a high near 15. West wind 3 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Decorah IA
 43.3°N 91.79°W
Last Update:
5:11 am CST Dec 27, 2025
Forecast Valid:
5am CST Dec 27, 2025-6pm CST Jan 2, 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

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation