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

77°F

25°C

Humidity 51%
Wind Speed N 10 mph
Barometer 30.08 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 27 Aug 12:15 pm CDT
Extended Forecast for

Decorah IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 82. Northwest wind around 7 mph.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, mostly clear, with a low around 54. Light west wind.

    Low: 54 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 7am. Otherwise, sunny, with a high near 83. Calm wind becoming west around 6 mph in the afternoon.

    High: 83 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: A 10 percent chance of showers after 5am. Mostly cloudy, with a low around 64. South wind 3 to 7 mph.

    Low: 64 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: Showers, with thunderstorms also possible after 1pm. High near 80. South wind 7 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 68. South wind 10 to 13 mph, with gusts as high as 24 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. South wind 10 to 13 mph, with gusts as high as 22 mph.

    High: 88 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. South wind around 7 mph.

    Low: 70 °F

    Partly Cloudy
    then Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 87. Southwest wind 6 to 8 mph.

    High: 87 °F

    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 82. Northwest wind around 7 mph.
Tonight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 54. Light west wind.
Friday
Patchy fog before 7am. Otherwise, sunny, with a high near 83. Calm wind becoming west around 6 mph in the afternoon.
Friday Night
A 10 percent chance of showers after 5am. Mostly cloudy, with a low around 64. South wind 3 to 7 mph.
Saturday
Showers, with thunderstorms also possible after 1pm. High near 80. South wind 7 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 68. South wind 10 to 13 mph, with gusts as high as 24 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. South wind 10 to 13 mph, with gusts as high as 22 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. South wind around 7 mph.
Monday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 87. Southwest wind 6 to 8 mph.
Monday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 85. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Light southeast wind.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 85. Calm wind becoming south around 6 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Decorah IA
 43.3°N 91.79°W
Last Update:
12:06 pm CDT Aug 27, 2026
Forecast Valid:
12pm CDT Aug 27, 2026-6pm CDT Sep 2, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation