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

Dangerous Heat in the West; Coastal Flooding & High Rip Current Risk into the Weekend on the East Coast; Flash Flooding Possible in the Southeast

A dangerous, record heat wave continues for the Desert Southwest and the Central Valley of California through Saturday, and the Pacific Northwest through Tuesday. Coastal flooding is expected through tonight at high tide along the Eastern Seaboard from Erin, while the high rip current risk and dangerous surf continue through the weekend. Flash flooding possible today in Georgia and South Carolina. Read More >

Hazardous Weather Conditions

Current conditions at

Waterloo, Waterloo Municipal Airport (KALO)

Lat: 42.55°NLon: 92.4°WElev: 873ft.

Overcast

68°F

20°C

Humidity 90%
Wind Speed Calm
Barometer 30.11 in (1019.4 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 22 Aug 8:54 am CDT
Extended Forecast for

2 Miles SE Clarksville IA

  • Today

    Today: Mostly cloudy, with a high near 80. West southwest wind 5 to 7 mph.

    High: 80 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 61. West northwest wind around 6 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 72. Breezy, with a northwest wind 8 to 16 mph, with gusts as high as 22 mph.

    High: 72 °F

    Sunny then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50. West northwest wind 6 to 11 mph.

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 69. Northwest wind 7 to 14 mph, with gusts as high as 22 mph.

    High: 69 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 80. West southwest wind 5 to 7 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 61. West northwest wind around 6 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Sunny, with a high near 72. Breezy, with a northwest wind 8 to 16 mph, with gusts as high as 22 mph.
Saturday Night
Mostly clear, with a low around 50. West northwest wind 6 to 11 mph.
Sunday
Sunny, with a high near 69. Northwest wind 7 to 14 mph, with gusts as high as 22 mph.
Sunday Night
Clear, with a low around 46.
Monday
Sunny, with a high near 67.
Monday Night
Mostly clear, with a low around 45.
Tuesday
Sunny, with a high near 70.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 73.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
Mostly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Clarksville IA
 42.75°N 92.64°W
Last Update:
6:49 am CDT Aug 22, 2025
Forecast Valid:
9am CDT Aug 22, 2025-6pm CDT Aug 28, 2025
 
Forecast Discussion
 
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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

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation