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

Severe Thunderstorms and Heavy Rainfall Across the Midwest into the Great Lakes Region; Significant Heat in the Southwest

Strong to severe storms may produce damaging winds, isolated hail, and a few tornadoes from the Midwest into the lower Great Lakes. These storms may also produce areas of heavy rain and flash flooding. Significant heat will continue across parts of the Desert Southwest into western Texas and north Alaska. Dangerous heat will also build into the Eastern and Central U.S. and continue into next week. Read More >

Hazardous Weather Conditions

Current conditions at

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Clermont IA

Extreme Heat Watch June 21, 12:00pm until June 22, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 76. North wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely before midnight, then isolated showers between midnight and 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 60. Northwest wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Showers
    Likely then
    Isolated
    Showers

  • Juneteenth

    Juneteenth: Sunny, with a high near 85. Northwest wind 5 to 8 mph.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers between 2am and 4am, then a slight chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 65. Southwest wind 3 to 7 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88. Breezy, with a south wind 8 to 17 mph, with gusts as high as 25 mph.

    High: 88 °F

    Chance
    T-storms and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 76. Breezy, with a south wind 14 to 16 mph, with gusts as high as 28 mph.

    Low: 76 °F

    Mostly Clear
    then Mostly
    Clear and
    Breezy

  • Saturday

    Saturday: Sunny, with a high near 94. Breezy, with a south wind 16 to 18 mph, with gusts as high as 28 mph.

    High: 94 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Clear, with a low around 76. South wind around 15 mph, with gusts as high as 24 mph.

    Low: 76 °F

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 95. Breezy, with a south wind 14 to 20 mph, with gusts as high as 29 mph.

    High: 95 °F

    Hot and
    Breezy

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 76. North wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before midnight, then isolated showers between midnight and 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 60. Northwest wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Juneteenth
Sunny, with a high near 85. Northwest wind 5 to 8 mph.
Thursday Night
A slight chance of showers between 2am and 4am, then a slight chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 65. Southwest wind 3 to 7 mph. Chance of precipitation is 20%.
Friday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88. Breezy, with a south wind 8 to 17 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 76. Breezy, with a south wind 14 to 16 mph, with gusts as high as 28 mph.
Saturday
Sunny, with a high near 94. Breezy, with a south wind 16 to 18 mph, with gusts as high as 28 mph.
Saturday Night
Clear, with a low around 76. South wind around 15 mph, with gusts as high as 24 mph.
Sunday
Sunny and hot, with a high near 95. Breezy, with a south wind 14 to 20 mph, with gusts as high as 29 mph.
Sunday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 76. Breezy, with a south wind 11 to 16 mph, with gusts as high as 25 mph.
Monday
A 50 percent chance of showers and thunderstorms. Sunny, with a high near 92. Southwest wind around 11 mph, with gusts as high as 20 mph.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. Southwest wind 5 to 9 mph. Chance of precipitation is 70%.
Tuesday
Showers and possibly a thunderstorm. High near 86. West wind around 7 mph. Chance of precipitation is 80%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 67. North wind around 6 mph becoming east after midnight. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm. High near 82. Southwest wind 6 to 8 mph. Chance of precipitation is 80%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Clermont IA
 43°N 91.65°W
Last Update:
3:59 pm CDT Jun 18, 2025
Forecast Valid:
4pm CDT Jun 18, 2025-6pm CDT Jun 25, 2025
 
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