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

Waterloo, Waterloo Municipal Airport (KALO)

Lat: 42.55°NLon: 92.4°WElev: 873ft.

Fair

66°F

19°C

Humidity 26%
Wind Speed N 9 mph
Barometer 30.03 in (1016.9 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 13 May 7:54 pm CDT
Extended Forecast for

Waterloo Municipal Airport IA

  • Tonight

    Tonight: Clear, with a low around 45. North northeast wind 5 to 8 mph becoming light and variable.

    Low: 45 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 77. Breezy, with a south wind 8 to 18 mph, with gusts as high as 26 mph.

    High: 77 °F

    Sunny then
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 55. Breezy, with a south wind 11 to 16 mph, with gusts as high as 24 mph.

    Low: 55 °F

    Breezy.
    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 86. South southwest wind 8 to 10 mph.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 57. South wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 56.

    Low: 56 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. Windy.

    High: 82 °F

    Chance
    T-storms and
    Windy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Windy. Chance of precipitation is 40%.

    Low: 63 °F

    Chance
    T-storms and
    Windy

Detailed Forecast

Tonight
Clear, with a low around 45. North northeast wind 5 to 8 mph becoming light and variable.
Thursday
Sunny, with a high near 77. Breezy, with a south wind 8 to 18 mph, with gusts as high as 26 mph.
Thursday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 55. Breezy, with a south wind 11 to 16 mph, with gusts as high as 24 mph.
Friday
Sunny, with a high near 86. South southwest wind 8 to 10 mph.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 57. South wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 56.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. Windy.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Windy. Chance of precipitation is 40%.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. Windy. Chance of precipitation is 70%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 55. Windy. Chance of precipitation is 60%.
Tuesday
Partly sunny, with a high near 71.
Tuesday Night
Mostly cloudy, with a low around 49.
Wednesday
Sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
Waterloo Municipal Airport IA
 42.53°N 92.41°W
Last Update:
7:32 pm CDT May 13, 2026
Forecast Valid:
8pm CDT May 13, 2026-6pm CDT May 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation