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.

Partly Cloudy

84°F

29°C

Humidity 66%
Wind Speed Vrbl 3 mph
Barometer 29.98 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 1 Sep 2:15 pm CDT
Extended Forecast for

3 Miles S Dorchester IA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 93. Heat index values as high as 98. Light southwest wind.

    High: 93 °F

    Partly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly between 1am and 3am. Increasing clouds, with a low around 69. Calm wind.

    Low: 69 °F

    Partly Cloudy
    then Chance
    T-storms

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 92. Heat index values as high as 98. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 92 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly after 3am. Increasing clouds, 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 chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 1pm. Partly sunny, with a high near 90. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 70. Light south wind. 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 chance of showers between 10am and 1pm. Partly sunny, with a high near 90. Light south wind. Chance of precipitation is 50%.

    High: 90 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 68. Calm wind. Chance of precipitation is 20%.

    Low: 68 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 90. Light southeast wind.

    High: 90 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
Partly sunny, with a high near 93. Heat index values as high as 98. Light southwest wind.
Tonight
A 30 percent chance of showers and thunderstorms, mainly between 1am and 3am. Increasing clouds, with a low around 69. Calm wind.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 92. Heat index values as high as 98. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly after 3am. Increasing clouds, 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 chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 1pm. Partly sunny, with a high near 90. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 70. Light south wind. 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 chance of showers between 10am and 1pm. Partly sunny, with a high near 90. Light south wind. Chance of precipitation is 50%.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 68. Calm wind. Chance of precipitation is 20%.
Saturday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 90. Light southeast wind.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 67. Calm wind.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 63. Light east wind.
Labor Day
A 20 percent chance of showers. Partly sunny, with a high near 82. Calm wind becoming east around 6 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Dorchester IA
 43.43°N 91.52°W
Last Update:
2:01 pm CDT Sep 1, 2026
Forecast Valid:
2pm CDT Sep 1, 2026-6pm CDT Sep 7, 2026
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation