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Hazardous Weather Conditions

Current conditions at

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

Fog

68°F

20°C

Humidity 100%
Wind Speed Vrbl 3 mph
Barometer 30.02 in
Dewpoint 68°F (20°C)
Visibility 0.15 mi
Last update 19 Aug 4:15 am CDT
Extended Forecast for

4 Miles N Decorah IA

Dense Fog Advisory August 19, 04:34am until August 19, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory August 19, 04:34am until August 19, 09:00am

    NOW until 9:00am Tue

    Dense Fog Advisory

  • Today

    High: 80 °F

    Areas Fog
    then Partly
    Sunny

  • Tonight

    Tonight: A slight chance of showers between 10pm and 11pm. Patchy dense fog before 4am, then areas of dense fog after 5am. Otherwise, partly cloudy, with a low around 65. Light north wind. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    Showers then
    Areas Dense
    Fog

  • Wednesday

    Wednesday: Areas of dense fog before 7am. Otherwise, mostly sunny, with a high near 80. Calm wind becoming northeast around 6 mph in the afternoon.

    High: 80 °F

    Areas Dense
    Fog then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61. Light southeast wind.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 78. Calm wind.

    High: 78 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. Calm wind becoming southwest around 6 mph in the morning.

    High: 80 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 56. Northwest wind around 5 mph.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Today
Areas of fog before 10am. Otherwise, partly sunny, with a high near 80. North wind 3 to 7 mph.
Tonight
A slight chance of showers between 10pm and 11pm. Patchy dense fog before 4am, then areas of dense fog after 5am. Otherwise, partly cloudy, with a low around 65. Light north wind. Chance of precipitation is 20%.
Wednesday
Areas of dense fog before 7am. Otherwise, mostly sunny, with a high near 80. Calm wind becoming northeast around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 61. Light southeast wind.
Thursday
Mostly sunny, with a high near 78. Calm wind.
Thursday Night
Partly cloudy, with a low around 61. Calm wind.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. Calm wind becoming southwest around 6 mph in the morning.
Friday Night
Partly cloudy, with a low around 56. Northwest wind around 5 mph.
Saturday
Sunny, with a high near 72. Northwest wind 6 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Mostly clear, with a low around 51. Northwest wind 6 to 8 mph.
Sunday
Sunny, with a high near 67. Northwest wind 6 to 10 mph.
Sunday Night
Mostly clear, with a low around 48. Northwest wind 5 to 7 mph.
Monday
Sunny, with a high near 68. Northwest wind 5 to 7 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Decorah IA
 43.37°N 91.79°W
Last Update:
4:29 am CDT Aug 19, 2025
Forecast Valid:
4am CDT Aug 19, 2025-6pm CDT Aug 25, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation