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.

Overcast

75°F

24°C

Humidity 89%
Wind Speed SE 5 mph
Barometer 29.88 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 2 Sep 8:35 pm CDT
Extended Forecast for

5 Miles ESE Saint Lucas IA

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 68. Southeast wind 3 to 5 mph.

    Low: 68 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly before 11am. Partly sunny, with a high near 86. South wind 5 to 8 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 2am, then showers likely and possibly a thunderstorm after 5am. Partly cloudy, with a low around 70. Southeast wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Mostly sunny, with a high near 87. Heat index values as high as 95. South wind around 6 mph. Chance of precipitation is 30%.

    High: 87 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Calm wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 86. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 67. Calm wind becoming southeast around 5 mph in the evening.

    Low: 67 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A slight chance of showers and thunderstorms. Partly sunny, with a high near 83. Southeast wind 3 to 6 mph. Chance of precipitation is 20%.

    High: 83 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. Southeast wind 3 to 5 mph.

    Low: 66 °F

    Chance
    Showers

Detailed Forecast

Tonight
A 10 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 68. Southeast wind 3 to 5 mph.
Thursday
A 40 percent chance of showers and thunderstorms, mainly before 11am. Partly sunny, with a high near 86. South wind 5 to 8 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms likely before 2am, then showers likely and possibly a thunderstorm after 5am. Partly cloudy, with a low around 70. Southeast wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Mostly sunny, with a high near 87. Heat index values as high as 95. South wind around 6 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Calm wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly sunny, with a high near 86. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 67. Calm wind becoming southeast around 5 mph in the evening.
Sunday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 83. Southeast wind 3 to 6 mph. Chance of precipitation is 20%.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. Southeast wind 3 to 5 mph.
Labor Day
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 80. Southeast wind 5 to 8 mph.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Southeast wind 8 to 10 mph.
Tuesday
A 40 percent chance of showers. Partly sunny, with a high near 81. South wind 10 to 13 mph, with gusts as high as 21 mph.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. South wind 10 to 13 mph becoming west after midnight.
Wednesday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 80. West wind 9 to 11 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Saint Lucas IA
 43.04°N 91.83°W
Last Update:
6:36 pm CDT Sep 2, 2026
Forecast Valid:
8pm CDT Sep 2, 2026-6pm CDT Sep 9, 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