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

41°F

5°C

Humidity 93%
Wind Speed NW 13 G 20 mph
Barometer 30.17 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 5 Apr 11:35 pm CDT
Extended Forecast for

6 Miles NNE Castalia IA

  • Tonight

    Tonight: Partly cloudy, with a low around 32. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.

    Low: 32 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 41. Northwest wind 11 to 15 mph, with gusts as high as 23 mph.

    High: 41 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 19. North wind 6 to 11 mph becoming light northeast after midnight. Winds could gust as high as 20 mph.

    Low: 19 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 42. Light and variable wind becoming southeast 5 to 9 mph in the morning.

    High: 42 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Rain likely, possibly mixed with snow showers, becoming all rain after 4am. Mostly cloudy, with a low around 33. Breezy, with a southeast wind 10 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 33 °F

    Rain/Snow
    Likely and
    Breezy

  • Wednesday

    Wednesday: A 50 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 63. Breezy, with a south wind 18 to 22 mph, with gusts as high as 32 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Breezy.
    Slight Chance
    Showers then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 43. Breezy, with a southwest wind 8 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    Low: 43 °F

    Showers
    Likely and
    Breezy

  • Thursday

    Thursday: A 30 percent chance of showers, mainly after 1pm. Mostly sunny, with a high near 56. West wind 8 to 10 mph.

    High: 56 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers. Partly cloudy, with a low around 34. Northwest wind around 6 mph becoming north after midnight.

    Low: 34 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 32. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.
Monday
Partly sunny, with a high near 41. Northwest wind 11 to 15 mph, with gusts as high as 23 mph.
Monday Night
Partly cloudy, with a low around 19. North wind 6 to 11 mph becoming light northeast after midnight. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 42. Light and variable wind becoming southeast 5 to 9 mph in the morning.
Tuesday Night
Rain likely, possibly mixed with snow showers, becoming all rain after 4am. Mostly cloudy, with a low around 33. Breezy, with a southeast wind 10 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday
A 50 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 63. Breezy, with a south wind 18 to 22 mph, with gusts as high as 32 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 43. Breezy, with a southwest wind 8 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Thursday
A 30 percent chance of showers, mainly after 1pm. Mostly sunny, with a high near 56. West wind 8 to 10 mph.
Thursday Night
A 40 percent chance of showers. Partly cloudy, with a low around 34. Northwest wind around 6 mph becoming north after midnight.
Friday
A 40 percent chance of showers. Mostly sunny, with a high near 56. Northeast wind around 6 mph.
Friday Night
A 40 percent chance of showers. Partly cloudy, with a low around 39. East wind around 6 mph.
Saturday
A 50 percent chance of showers. Partly sunny, with a high near 59. Southeast wind 6 to 9 mph.
Saturday Night
Showers likely. Mostly cloudy, with a low around 49. Southeast wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 69. South wind 10 to 13 mph. Chance of precipitation is 70%.
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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:
10:41 pm CDT Apr 5, 2026
Forecast Valid:
11pm CDT Apr 5, 2026-6pm CDT Apr 12, 2026
 
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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