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.

Fair

30°F

-1°C

Humidity 100%
Wind Speed SW 5 mph
Barometer 29.81 in
Dewpoint 30°F (-1°C)
Visibility 9.00 mi
Wind Chill25°F (-4°C)
Last update 26 Feb 8:35 pm CST
Extended Forecast for

4 Miles NE Castalia IA

  • Tonight

    Tonight: Mostly clear, with a low around 25. Southwest wind around 6 mph.

    Low: 25 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 45. Southwest wind 7 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph.

    High: 45 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 19. Northwest wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 19 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Snow likely, mainly before noon. Mostly cloudy, with a high near 23. North wind around 8 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    High: 23 °F

    Snow Likely

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 6. North wind around 6 mph.

    Low: 6 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of snow after noon. Partly sunny, with a high near 26. Northeast wind 3 to 6 mph.

    High: 26 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 13. Light and variable wind.

    Low: 13 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 35. South wind 3 to 8 mph.

    High: 35 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 22. South wind around 7 mph.

    Low: 22 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 25. Southwest wind around 6 mph.
Friday
Mostly sunny, with a high near 45. Southwest wind 7 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph.
Friday Night
Increasing clouds, with a low around 19. Northwest wind 7 to 10 mph, with gusts as high as 18 mph.
Saturday
Snow likely, mainly before noon. Mostly cloudy, with a high near 23. North wind around 8 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
Mostly clear, with a low around 6. North wind around 6 mph.
Sunday
A 20 percent chance of snow after noon. Partly sunny, with a high near 26. Northeast wind 3 to 6 mph.
Sunday Night
Mostly cloudy, with a low around 13. Light and variable wind.
Monday
Mostly sunny, with a high near 35. South wind 3 to 8 mph.
Monday Night
Mostly cloudy, with a low around 22. South wind around 7 mph.
Tuesday
A chance of snow before noon, then a chance of rain and snow. Mostly cloudy, with a high near 37. South wind around 7 mph. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 25. South wind around 6 mph becoming east after midnight.
Wednesday
A 40 percent chance of rain. Mostly cloudy, with a high near 42. Southeast wind 6 to 8 mph.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 32. East wind around 8 mph.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 46. Southeast wind around 8 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Castalia IA
 43.17°N 91.62°W
Last Update:
5:32 pm CST Feb 26, 2026
Forecast Valid:
8pm CST Feb 26, 2026-6pm CST Mar 5, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation