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Hazardous Weather Conditions

Current conditions at

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

Overcast

45°F

7°C

Humidity 93%
Wind Speed Vrbl 5 mph
Barometer 30.03 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 16 Oct 4:35 am CDT
Extended Forecast for

Castalia IA

Freeze Warning October 17, 01:00am until October 17, 09:00am
Click here for hazard details and duration
Freeze Warning

  • Today

    Today: Showers likely, mainly between 8am and 10am. Mostly cloudy, with a high near 48. Breezy, with a north wind 16 to 25 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 48 °F

    Breezy.
    Showers
    Likely then
    Mostly Cloudy

  • Tonight

    Tonight: Widespread frost, mainly after 1am. Otherwise, mostly clear, with a low around 30. North wind 5 to 8 mph becoming calm in the evening.

    Low: 30 °F

    Frost

  • Saturday

    Saturday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 55. Light southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 55 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 40. South wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 40 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 61. Breezy, with a south wind 13 to 16 mph, with gusts as high as 24 mph.

    High: 61 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43. South wind 5 to 8 mph, with gusts as high as 18 mph.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 63. South wind 3 to 5 mph.

    High: 63 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 68. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 68 °F

    Mostly Sunny

Detailed Forecast

Today
Showers likely, mainly between 8am and 10am. Mostly cloudy, with a high near 48. Breezy, with a north wind 16 to 25 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Widespread frost, mainly after 1am. Otherwise, mostly clear, with a low around 30. North wind 5 to 8 mph becoming calm in the evening.
Saturday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 55. Light southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Saturday Night
Clear, with a low around 40. South wind 8 to 11 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 61. Breezy, with a south wind 13 to 16 mph, with gusts as high as 24 mph.
Sunday Night
Mostly clear, with a low around 43. South wind 5 to 8 mph, with gusts as high as 18 mph.
Monday
Mostly sunny, with a high near 63. South wind 3 to 5 mph.
Monday Night
Partly cloudy, with a low around 43. Calm wind.
Tuesday
Mostly sunny, with a high near 68. Calm wind becoming southeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 48. Light southeast wind.
Wednesday
Mostly sunny, with a high near 70. South wind 3 to 8 mph.
Wednesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 53. South wind around 6 mph.
Thursday
A 20 percent chance of showers. Partly sunny, with a high near 70. South wind 6 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Castalia IA
 43.1°N 91.68°W
Last Update:
3:41 am CDT Oct 16, 2026
Forecast Valid:
4am CDT Oct 16, 2026-6pm CDT Oct 22, 2026
 
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