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

59°F

15°C

Humidity 36%
Wind Speed Calm
Barometer 30.40 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 8 Oct 1:55 pm CDT
Extended Forecast for

4 Miles NE Castalia IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 61. Light east wind.

    High: 61 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 40. Light east wind.

    Low: 40 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 66. Light southeast wind becoming south 5 to 9 mph in the morning.

    High: 66 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 51. South wind 6 to 8 mph. Chance of precipitation is 40%.

    Low: 51 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 72. South wind around 9 mph becoming northwest in the afternoon.

    High: 72 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41. North wind 3 to 6 mph.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 66. Light and variable wind becoming east 5 to 7 mph in the morning.

    High: 66 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 47. East wind 6 to 8 mph.

    Low: 47 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 68. Southeast wind 9 to 14 mph, with gusts as high as 23 mph.

    High: 68 °F

    Partly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 61. Light east wind.
Tonight
Mostly clear, with a low around 40. Light east wind.
Thursday
Sunny, with a high near 66. Light southeast wind becoming south 5 to 9 mph in the morning.
Thursday Night
A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 51. South wind 6 to 8 mph. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 72. South wind around 9 mph becoming northwest in the afternoon.
Friday Night
Mostly clear, with a low around 41. North wind 3 to 6 mph.
Saturday
Sunny, with a high near 66. Light and variable wind becoming east 5 to 7 mph in the morning.
Saturday Night
Partly cloudy, with a low around 47. East wind 6 to 8 mph.
Sunday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 68. Southeast wind 9 to 14 mph, with gusts as high as 23 mph.
Sunday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 54. Southeast wind 9 to 13 mph. Chance of precipitation is 30%.
Columbus Day
A 20 percent chance of showers. Partly sunny, with a high near 71. Southeast wind around 8 mph becoming northeast in the afternoon.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 52. Northeast wind around 5 mph.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 69. East wind 5 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Castalia IA
 43.17°N 91.62°W
Last Update:
2:01 pm CDT Oct 8, 2025
Forecast Valid:
2pm CDT Oct 8, 2025-6pm CDT Oct 14, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation