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

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

Overcast

30°F

-1°C

Humidity 93%
Wind Speed Vrbl 7 mph
Barometer 29.80 in
Dewpoint 28°F (-2°C)
Visibility 9.00 mi
Wind Chill23°F (-5°C)
Last update 3 Dec 3:15 am CST
Extended Forecast for

Decorah IA

  • Overnight

    Overnight: A 50 percent chance of snow. Cloudy, with a steady temperature around 26. West wind around 8 mph, with gusts as high as 20 mph. Total nighttime snow accumulation of less than a half inch possible.

    Low: 26 °F

    Chance Snow

  • Wednesday

    Wednesday: A slight chance of snow before 10am, then a chance of flurries between 10am and 1pm. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 10 by 5pm. Wind chill values as low as -4. Northwest wind 9 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 24 °F⇓

    Slight Chance
    Snow then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around -10. Wind chill values as low as -17. Northwest wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 22 mph.

    Low: -10 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 11. Wind chill values as low as -10. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 11 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 4. Southwest wind 8 to 11 mph, with gusts as high as 22 mph.

    Low: 4 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 28. Southwest wind around 7 mph.

    High: 28 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 15. Southwest wind around 5 mph becoming calm in the evening.

    Low: 15 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 25. Calm wind becoming north around 5 mph.

    High: 25 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: Snow likely, mainly before midnight. Cloudy, with a low around 12. Northeast wind 3 to 5 mph. Chance of precipitation is 60%.

    Low: 12 °F

    Snow Likely

Detailed Forecast

Overnight
A 50 percent chance of snow. Cloudy, with a steady temperature around 26. West wind around 8 mph, with gusts as high as 20 mph. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
A slight chance of snow before 10am, then a chance of flurries between 10am and 1pm. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 10 by 5pm. Wind chill values as low as -4. Northwest wind 9 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around -10. Wind chill values as low as -17. Northwest wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 22 mph.
Thursday
Sunny, with a high near 11. Wind chill values as low as -10. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 4. Southwest wind 8 to 11 mph, with gusts as high as 22 mph.
Friday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 28. Southwest wind around 7 mph.
Friday Night
Mostly cloudy, with a low around 15. Southwest wind around 5 mph becoming calm in the evening.
Saturday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 25. Calm wind becoming north around 5 mph.
Saturday Night
Snow likely, mainly before midnight. Cloudy, with a low around 12. Northeast wind 3 to 5 mph. Chance of precipitation is 60%.
Sunday
A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 21. Northeast wind 5 to 7 mph.
Sunday Night
Mostly cloudy, with a low around 5. North wind around 5 mph becoming calm in the evening.
Monday
A 20 percent chance of snow. Mostly cloudy, with a high near 25. Calm wind becoming south 5 to 8 mph in the morning.
Monday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 17. South wind around 6 mph becoming west after midnight.
Tuesday
A 20 percent chance of snow. Mostly cloudy, with a high near 30. West wind 6 to 8 mph becoming south in the afternoon.
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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:
3:16 am CST Dec 3, 2025
Forecast Valid:
3am CST Dec 3, 2025-6pm CST Dec 9, 2025
 
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