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.

Mostly Cloudy

77°F

25°C

Humidity 61%
Wind Speed NW 15 G 21 mph
Barometer 29.96 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 26 Aug 3:15 pm CDT
Extended Forecast for

Decorah IA

  • Tonight

    Tonight: Mostly clear, with a low around 58. Northwest wind 5 to 9 mph becoming calm in the evening.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54. Calm wind.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 64. Calm wind becoming south around 5 mph after midnight.

    Low: 64 °F

    Mostly Cloudy

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. South wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South wind around 14 mph, with gusts as high as 24 mph.

    Low: 67 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. South wind 13 to 15 mph, with gusts as high as 24 mph.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 70. South wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 70 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 58. Northwest wind 5 to 9 mph becoming calm in the evening.
Thursday
Sunny, with a high near 82. Calm wind becoming northwest around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 54. Calm wind.
Friday
Sunny, with a high near 83. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 64. Calm wind becoming south around 5 mph after midnight.
Saturday
Showers likely, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. South wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South wind around 14 mph, with gusts as high as 24 mph.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. South wind 13 to 15 mph, with gusts as high as 24 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 70. South wind 8 to 11 mph, with gusts as high as 21 mph.
Monday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 89. Southwest wind 7 to 9 mph.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. South wind around 5 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 87. Light west wind.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Calm wind.
Wednesday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Calm wind becoming south 5 to 7 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
Decorah IA
 43.3°N 91.79°W
Last Update:
1:26 pm CDT Aug 26, 2026
Forecast Valid:
3pm CDT Aug 26, 2026-6pm CDT Sep 2, 2026
 
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Additional Resources

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Chance of Precipitation