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 >

Current conditions at

Waterloo, Waterloo Municipal Airport (KALO)

Lat: 42.55°NLon: 92.4°WElev: 873ft.

Overcast

73°F

23°C

Humidity 74%
Wind Speed NE 8 mph
Barometer 29.78 in (1007.9 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 18 Jun 2:54 pm CDT
Extended Forecast for

2 Miles SSE Clarksville 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 8 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, mainly before 11pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 59. West northwest wind 6 to 8 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Showers
    Likely then
    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 85. West northwest wind 6 to 10 mph.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms, mainly after 3am.  Increasing clouds, with a low around 66. South wind 7 to 10 mph.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Mostly Clear
    then Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly before 10am.  Mostly sunny, with a high near 90. Windy, with a south wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 31 mph.  New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Chance
    T-storms and
    Breezy then
    Sunny and
    Windy

  • Friday Night

    Friday Night: Mostly clear, with a low around 76. Windy.

    Low: 76 °F

    Mostly Clear
    and Windy

  • Saturday

    Saturday: Sunny, with a high near 95. Windy.

    High: 95 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Clear, with a low around 76. Breezy.

    Low: 76 °F

    Clear and
    Breezy

  • Sunday

    Sunday: Sunny, with a high near 95. Windy.

    High: 95 °F

    Sunny and
    Windy

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 8 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, mainly before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 59. West northwest wind 6 to 8 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. West northwest wind 6 to 10 mph.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly after 3am. Increasing clouds, with a low around 66. South wind 7 to 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A 40 percent chance of showers and thunderstorms, mainly before 10am. Mostly sunny, with a high near 90. Windy, with a south wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 31 mph. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Mostly clear, with a low around 76. Windy.
Saturday
Sunny, with a high near 95. Windy.
Saturday Night
Clear, with a low around 76. Breezy.
Sunday
Sunny, with a high near 95. Windy.
Sunday Night
A 30 percent chance of showers after 1am. Mostly clear, with a low around 74. Breezy.
Monday
A 50 percent chance of showers and thunderstorms. Sunny, with a high near 91.
Monday Night
Showers and possibly a thunderstorm. Low around 68. Chance of precipitation is 80%.
Tuesday
Showers and possibly a thunderstorm. High near 86. Chance of precipitation is 80%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Clarksville IA
 42.75°N 92.64°W
2:51 pm CDT Jun 18, 2025
3pm CDT Jun 18, 2025-6pm CDT Jun 24, 2025
 
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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