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

19°F

-7°C

Humidity 93%
Wind Speed NW 5 mph
Barometer 30.12 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 2 Feb 5:55 pm CST
Extended Forecast for

6 Miles NNE Castalia IA

  • Tonight

    Tonight: A chance of flurries with a slight chance of snow before 10pm, then a chance of flurries between 10pm and 2am. Mostly cloudy, with a low around 7. North wind 3 to 5 mph. Chance of precipitation is 20%.

    Low: 7 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 20. Wind chill values as low as -2. North wind 3 to 6 mph.

    High: 20 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 1. Calm wind.

    Low: 1 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 21. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 21 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 12. Northwest wind around 5 mph becoming calm.

    Low: 12 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 34. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 34 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 27. West wind 8 to 14 mph, with gusts as high as 22 mph.

    Low: 27 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 35. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.

    High: 35 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 10. Northwest wind 5 to 8 mph becoming light and variable after midnight.

    Low: 10 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of flurries with a slight chance of snow before 10pm, then a chance of flurries between 10pm and 2am. Mostly cloudy, with a low around 7. North wind 3 to 5 mph. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 20. Wind chill values as low as -2. North wind 3 to 6 mph.
Tuesday Night
Partly cloudy, with a low around 1. Calm wind.
Wednesday
Mostly sunny, with a high near 21. Calm wind becoming northwest around 6 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 12. Northwest wind around 5 mph becoming calm.
Thursday
Partly sunny, with a high near 34. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Thursday Night
Mostly cloudy, with a low around 27. West wind 8 to 14 mph, with gusts as high as 22 mph.
Friday
Mostly sunny, with a high near 35. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.
Friday Night
Partly cloudy, with a low around 10. Northwest wind 5 to 8 mph becoming light and variable after midnight.
Saturday
Mostly sunny, with a high near 26. Light and variable wind becoming south 5 to 8 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 15. South wind around 6 mph becoming west after midnight.
Sunday
Mostly sunny, with a high near 30. South wind 5 to 7 mph becoming light and variable in the afternoon.
Sunday Night
Partly cloudy, with a low around 17. South wind 3 to 6 mph.
Monday
Mostly sunny, with a high near 35. South wind 6 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNE Castalia IA
 43.19°N 91.62°W
Last Update:
5:32 pm CST Feb 2, 2026
Forecast Valid:
6pm CST Feb 2, 2026-6pm CST Feb 9, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation