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

Hazardous Weather Conditions

Current conditions at

Waterloo, Waterloo Municipal Airport (KALO)

Lat: 42.55°NLon: 92.4°WElev: 873ft.

Fair

74°F

23°C

Humidity 64%
Wind Speed S 9 mph
Barometer 29.91 in (1012.2 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 19 Jun 10:54 pm CDT
Extended Forecast for

5 Miles NW Readlyn IA

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

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 66. South wind 8 to 11 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Showers

  • Friday

    Friday: Showers and thunderstorms, mainly before noon. Some of the storms could produce heavy rainfall. High near 89. Windy, with a south wind 14 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 89 °F

    Heavy Rain
    and Breezy
    then Slight
    Chance
    T-storms and
    Windy

  • Friday Night

    Friday Night: Mostly clear, with a low around 76. Windy, with a south wind 20 to 22 mph, with gusts as high as 32 mph.

    Low: 76 °F

    Mostly Clear
    and Windy

  • Saturday

    Saturday: Sunny, with a high near 94. Heat index values as high as 102. Windy, with a south southwest wind 23 to 28 mph, with gusts as high as 37 mph.

    High: 94 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 77. Windy, with a south southwest wind 20 to 23 mph, with gusts as high as 33 mph.

    Low: 77 °F

    Mostly Clear
    and Windy

  • Sunday

    Sunday: Sunny, with a high near 94. Windy.

    High: 94 °F

    Sunny and
    Windy

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 75. Windy.

    Low: 75 °F

    Slight Chance
    T-storms and
    Windy

  • Monday

    Monday: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 90. Breezy. Chance of precipitation is 60%.

    High: 90 °F

    Breezy.
    Slight Chance
    T-storms then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 67. Chance of precipitation is 80%.

    Low: 67 °F

    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 66. South wind 8 to 11 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and thunderstorms, mainly before noon. Some of the storms could produce heavy rainfall. High near 89. Windy, with a south wind 14 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
Mostly clear, with a low around 76. Windy, with a south wind 20 to 22 mph, with gusts as high as 32 mph.
Saturday
Sunny, with a high near 94. Heat index values as high as 102. Windy, with a south southwest wind 23 to 28 mph, with gusts as high as 37 mph.
Saturday Night
Mostly clear, with a low around 77. Windy, with a south southwest wind 20 to 23 mph, with gusts as high as 33 mph.
Sunday
Sunny, with a high near 94. Windy.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 75. Windy.
Monday
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 90. Breezy. Chance of precipitation is 60%.
Monday Night
Showers and possibly a thunderstorm. Low around 67. Chance of precipitation is 80%.
Tuesday
Showers and possibly a thunderstorm. High near 83. Chance of precipitation is 80%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 67. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm. High near 84. Chance of precipitation is 80%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Chance of precipitation is 70%.
Thursday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 82. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Readlyn IA
 42.75°N 92.31°W
Last Update:
11:21 pm CDT Jun 19, 2025
Forecast Valid:
11pm CDT Jun 19, 2025-6pm CDT Jun 26, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation