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Hazardous Weather Conditions

Current conditions at

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

Fog/Mist

25°F

-4°C

Humidity 100%
Wind Speed Calm
Barometer 30.15 in
Dewpoint 25°F (-4°C)
Visibility 3.00 mi
Last update 4 Mar 6:35 am CST
Extended Forecast for

Decorah IA

Dense Fog Advisory March 4, 07:01am until March 4, 10:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory March 4, 07:01am until March 4, 10:00am

    NOW until 10:00am Wed

    Dense Fog Advisory

  • Today

    High: 52 °F

    Dense Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: A 20 percent chance of showers after 5am. Increasing clouds, with a low around 35. Calm wind.

    Low: 35 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers before noon. Mostly cloudy, with a high near 51. Calm wind becoming southeast around 5 mph.

    High: 51 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm, mainly after 3am. Mostly cloudy, with a low around 42. Calm wind becoming southeast 5 to 7 mph after midnight. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 42 °F

    Mostly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 63. Southeast wind 7 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 63 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before midnight, then a chance of showers. Low around 33. Southwest wind 8 to 11 mph becoming northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 33 °F

    Showers then
    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 48. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 48 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 35. Southwest wind 7 to 13 mph, with gusts as high as 22 mph.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

Today
Widespread dense fog before 10am. Otherwise, mostly sunny, with a high near 52. Light southeast wind.
Tonight
A 20 percent chance of showers after 5am. Increasing clouds, with a low around 35. Calm wind.
Thursday
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 51. Calm wind becoming southeast around 5 mph.
Thursday Night
Showers likely and possibly a thunderstorm, mainly after 3am. Mostly cloudy, with a low around 42. Calm wind becoming southeast 5 to 7 mph after midnight. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Showers and possibly a thunderstorm. High near 63. Southeast wind 7 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
Showers and possibly a thunderstorm before midnight, then a chance of showers. Low around 33. Southwest wind 8 to 11 mph becoming northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Mostly sunny, with a high near 48. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 35. Southwest wind 7 to 13 mph, with gusts as high as 22 mph.
Sunday
Mostly sunny, with a high near 59. Breezy, with a southwest wind 10 to 16 mph.
Sunday Night
Mostly clear, with a low around 40. Southwest wind around 9 mph.
Monday
Sunny, with a high near 67. Breezy, with a southwest wind 9 to 16 mph.
Monday Night
A 20 percent chance of showers. Mostly clear, with a low around 44. Southwest wind around 10 mph, with gusts as high as 20 mph.
Tuesday
A 50 percent chance of showers. Partly sunny, with a high near 59. Southwest wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 23 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Decorah IA
 43.3°N 91.79°W
Last Update:
6:57 am CST Mar 4, 2026
Forecast Valid:
7am CST Mar 4, 2026-6pm CDT Mar 10, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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