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.

Overcast

84°F

29°C

Humidity 89%
Wind Speed S 9 G 17 mph
Barometer 29.77 in
Dewpoint 81°F (27°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 29 Jun 8:55 pm CDT
Extended Forecast for

Decorah IA

Extreme Heat Warning June 29, 08:59pm until July 1, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning June 29, 08:59pm until July 1, 07:00pm

    NOW until 7:00pm Wed

    Extreme Heat Warning

  • Tonight

    Low: 76 °F

    Partly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: A 10 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 92. Heat index values as high as 106. South wind 9 to 14 mph, with gusts as high as 23 mph.

    High: 92 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 74. Southwest wind 7 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 74 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms before 1pm. Partly sunny through mid morning, then becoming sunny, with a high near 90. Heat index values as high as 99. South wind 6 to 14 mph, with gusts as high as 24 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 73. Southwest wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. Southwest wind around 9 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 71. South wind 3 to 6 mph. Chance of precipitation is 70%.

    Low: 71 °F

    Showers
    Likely

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. Southwest wind 6 to 9 mph.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 76. South wind 10 to 15 mph, with gusts as high as 28 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A 10 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 92. Heat index values as high as 106. South wind 9 to 14 mph, with gusts as high as 23 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 74. Southwest wind 7 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 40 percent chance of showers and thunderstorms before 1pm. Partly sunny through mid morning, then becoming sunny, with a high near 90. Heat index values as high as 99. South wind 6 to 14 mph, with gusts as high as 24 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 73. Southwest wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. Southwest wind around 9 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 71. South wind 3 to 6 mph. Chance of precipitation is 70%.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. Southwest wind 6 to 9 mph.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 70. Southwest wind 5 to 7 mph becoming calm in the evening.
Independence Day
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. South wind 3 to 8 mph. Chance of precipitation is 60%.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind around 6 mph becoming light and variable after midnight.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. Northwest wind 5 to 8 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65. Northwest wind 5 to 7 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 83. Calm wind becoming northwest 5 to 7 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Decorah IA
 43.3°N 91.79°W
Last Update:
8:06 pm CDT Jun 29, 2026
Forecast Valid:
8pm CDT Jun 29, 2026-6pm CDT Jul 6, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation