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

64°F

18°C

Humidity 78%
Wind Speed NW 3 mph
Barometer 30.02 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 9 Sep 11:55 pm CDT
Extended Forecast for

Fort Atkinson IA

  • Overnight

    Overnight: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Patchy Fog

  • Thursday

    Thursday: Areas of fog before 8am. Otherwise, sunny, with a high near 77. Light northwest wind.

    High: 77 °F

    Areas Fog
    then Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 55. Calm wind becoming south around 6 mph in the evening.

    Low: 55 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 77. South wind 7 to 15 mph, with gusts as high as 24 mph.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 62. South wind 11 to 14 mph, with gusts as high as 22 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 76. Southwest wind 7 to 10 mph becoming northwest in the afternoon.

    High: 76 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Partly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 72. Calm wind becoming east 5 to 7 mph in the morning.

    High: 72 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 59. Southeast wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    Low: 59 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Overnight
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 54. Calm wind.
Thursday
Areas of fog before 8am. Otherwise, sunny, with a high near 77. Light northwest wind.
Thursday Night
Clear, with a low around 55. Calm wind becoming south around 6 mph in the evening.
Friday
Sunny, with a high near 77. South wind 7 to 15 mph, with gusts as high as 24 mph.
Friday Night
A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 62. South wind 11 to 14 mph, with gusts as high as 22 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 76. Southwest wind 7 to 10 mph becoming northwest in the afternoon.
Saturday Night
Partly cloudy, with a low around 53. Calm wind.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 72. Calm wind becoming east 5 to 7 mph in the morning.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 59. Southeast wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Monday
Showers and possibly a thunderstorm. High near 79. Breezy, with a south wind 16 to 20 mph. Chance of precipitation is 80%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 56. Breezy, with a southwest wind 9 to 16 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 60%.
Tuesday
Partly sunny, with a high near 70. Northwest wind 5 to 8 mph.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 52. Calm wind.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 70. Calm wind becoming southeast 5 to 7 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Atkinson IA
 43.15°N 91.94°W
Last Update:
9:16 pm CDT Sep 9, 2026
Forecast Valid:
12am CDT Sep 10, 2026-6pm CDT Sep 16, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation