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.

Partly Cloudy

66°F

19°C

Humidity 100%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 6 Jul 1:55 am CDT
Extended Forecast for

Decorah IA

  • Overnight

    Overnight: Areas of fog after 4am. Otherwise, mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Areas Fog

  • Monday

    Monday: Areas of fog before 9am. Otherwise, sunny, with a high near 84. Light east wind.

    High: 84 °F

    Areas Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 62. Light and variable wind.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 86. Calm wind.

    High: 86 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 65. Calm wind.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 86. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

    High: 86 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. Southwest wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 70%.

    Low: 68 °F

    Showers
    Likely

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 82 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 64. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 64 °F

    Slight Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Overnight
Areas of fog after 4am. Otherwise, mostly clear, with a low around 64. Calm wind.
Monday
Areas of fog before 9am. Otherwise, sunny, with a high near 84. Light east wind.
Monday Night
Mostly clear, with a low around 62. Light and variable wind.
Tuesday
Mostly sunny, with a high near 86. Calm wind.
Tuesday Night
Partly cloudy, with a low around 65. Calm wind.
Wednesday
Mostly sunny, with a high near 86. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. Southwest wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 70%.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82. Calm wind becoming northwest around 6 mph in the afternoon.
Thursday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 64. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81. East wind 3 to 5 mph.
Friday Night
Partly cloudy, with a low around 63. East wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 84. Calm wind becoming east around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 64. Light and variable wind.
Sunday
Sunny, with a high near 87. Calm wind becoming southwest 5 to 8 mph in the afternoon.
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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:
2:16 am CDT Jul 6, 2026
Forecast Valid:
2am CDT Jul 6, 2026-6pm CDT Jul 12, 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