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

46°F

8°C

Humidity 100%
Wind Speed SE 7 mph
Barometer 29.88 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 19 Mar 11:15 pm CDT
Extended Forecast for

3 Miles ENE Castalia IA

  • Tonight

    Tonight: Mostly cloudy, with a steady temperature around 49. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 49 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 66. North wind 8 to 10 mph, with gusts as high as 21 mph.

    High: 66 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 42. Light and variable wind becoming southeast around 5 mph after midnight.

    Low: 42 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 76. South wind 5 to 13 mph, with gusts as high as 23 mph.

    High: 76 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 48. Southwest wind 5 to 10 mph becoming north after midnight.

    Low: 48 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 53. North wind 11 to 15 mph, with gusts as high as 23 mph.

    High: 53 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 27. North wind 7 to 13 mph.

    Low: 27 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 47. North wind around 6 mph becoming south in the afternoon.

    High: 47 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 35. South wind 5 to 8 mph.

    Low: 35 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a steady temperature around 49. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Friday
Partly sunny, with a high near 66. North wind 8 to 10 mph, with gusts as high as 21 mph.
Friday Night
Mostly cloudy, with a low around 42. Light and variable wind becoming southeast around 5 mph after midnight.
Saturday
Mostly sunny, with a high near 76. South wind 5 to 13 mph, with gusts as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 48. Southwest wind 5 to 10 mph becoming north after midnight.
Sunday
Mostly cloudy, with a high near 53. North wind 11 to 15 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 27. North wind 7 to 13 mph.
Monday
Mostly sunny, with a high near 47. North wind around 6 mph becoming south in the afternoon.
Monday Night
Mostly cloudy, with a low around 35. South wind 5 to 8 mph.
Tuesday
Mostly cloudy, with a high near 52. South wind around 9 mph.
Tuesday Night
Mostly cloudy, with a low around 33. East wind around 7 mph.
Wednesday
Mostly cloudy, with a high near 56. Southeast wind 8 to 11 mph.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 38. South wind 9 to 13 mph becoming southwest after midnight. Winds could gust as high as 21 mph.
Thursday
A 30 percent chance of rain. Partly sunny, with a high near 53. Breezy, with a northwest wind 14 to 17 mph, with gusts as high as 26 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Castalia IA
 43.12°N 91.62°W
Last Update:
9:41 pm CDT Mar 19, 2026
Forecast Valid:
11pm CDT Mar 19, 2026-6pm CDT Mar 26, 2026
 
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