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

84°F

29°C

Humidity 72%
Wind Speed Calm
Barometer 29.89 in (1011.3 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 1 Sep 7:54 pm CDT
Extended Forecast for

Waterloo Municipal Airport IA

  • Tonight

    Tonight: Increasing clouds, with a low around 72. South southeast wind 5 to 7 mph becoming west after midnight.

    Low: 72 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 91. South southeast wind 5 to 10 mph becoming west southwest in the morning.

    High: 91 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 3am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 73. West southwest wind around 5 mph becoming light and variable. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    Mostly Clear
    then Chance
    T-storms

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 90. Light southeast wind becoming south 5 to 9 mph in the morning. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 73. South southeast wind 6 to 8 mph.

    Low: 73 °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 90. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69.

    Low: 69 °F

    Mostly Clear
    then Chance
    T-storms

Detailed Forecast

Tonight
Increasing clouds, with a low around 72. South southeast wind 5 to 7 mph becoming west after midnight.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 91. South southeast wind 5 to 10 mph becoming west southwest in the morning.
Wednesday Night
A slight chance of showers and thunderstorms before 3am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 73. West southwest wind around 5 mph becoming light and variable. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 90. Light southeast wind becoming south 5 to 9 mph in the morning. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 73. South southeast wind 6 to 8 mph.
Friday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 90. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Partly cloudy, with a low around 71.
Saturday
Mostly sunny, with a high near 89.
Saturday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69.
Sunday
A 40 percent chance of showers. Mostly sunny, with a high near 86.
Sunday Night
A 30 percent chance of showers. Partly cloudy, with a low around 66.
Labor Day
Partly sunny, with a high near 81.
Monday Night
Mostly cloudy, with a low around 63.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Waterloo Municipal Airport IA
 42.53°N 92.41°W
Last Update:
8:11 pm CDT Sep 1, 2026
Forecast Valid:
8pm CDT Sep 1, 2026-6pm CDT Sep 8, 2026
 
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