National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

Fair

84°F

29°C

Humidity 66%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 1 Sep 11:55 am CDT
Extended Forecast for

Clermont IA

  • This Afternoon

    This Afternoon: A slight chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 90. Heat index values as high as 96. Light southwest wind. Chance of precipitation is 20%.

    High: 90 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Increasing clouds, with a low around 70. Calm wind.

    Low: 70 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 90. Heat index values as high as 96. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 90 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly between 2am and 4am. Partly cloudy, with a low around 70. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Mostly Clear
    then Chance
    Showers

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88. Calm wind becoming south around 6 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. Light south wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Mostly Clear
    then Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 88. Calm wind becoming south around 5 mph. Chance of precipitation is 30%.

    High: 88 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 89. Light southeast wind.

    High: 89 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
A slight chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 90. Heat index values as high as 96. Light southwest wind. Chance of precipitation is 20%.
Tonight
Increasing clouds, with a low around 70. Calm wind.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 90. Heat index values as high as 96. Calm wind becoming southwest 5 to 8 mph in the morning.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly between 2am and 4am. Partly cloudy, with a low around 70. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A 50 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88. Calm wind becoming south around 6 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. Light south wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 88. Calm wind becoming south around 5 mph. Chance of precipitation is 30%.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. Calm wind.
Saturday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 89. Light southeast wind.
Saturday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Calm wind.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Calm wind becoming south around 5 mph.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 64. Light east wind.
Labor Day
A 20 percent chance of showers. Partly sunny, with a high near 82. East wind 3 to 6 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Clermont IA
 43°N 91.65°W
Last Update:
11:41 am CDT Sep 1, 2026
Forecast Valid:
12pm CDT Sep 1, 2026-6pm CDT Sep 7, 2026
 
Forecast Discussion
 
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Additional Resources

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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