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

78°F

26°C

Humidity 74%
Wind Speed Calm
Barometer 30.08 in (1018.2 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 6 Jul 9:54 am CDT
Extended Forecast for

Waterloo IA

  • Today

    Today: Mostly sunny, with a high near 85. East wind 3 to 5 mph.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 63. Light and variable wind.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 86. Light south southwest wind.

    High: 86 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 65. South wind 3 to 5 mph.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 88. South southwest wind 5 to 10 mph.

    High: 88 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 69. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 85.

    High: 85 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers after 1pm. Partly sunny, with a high near 83.

    High: 83 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 85. East wind 3 to 5 mph.
Tonight
Mostly clear, with a low around 63. Light and variable wind.
Tuesday
Mostly sunny, with a high near 86. Light south southwest wind.
Tuesday Night
Partly cloudy, with a low around 65. South wind 3 to 5 mph.
Wednesday
Mostly sunny, with a high near 88. South southwest wind 5 to 10 mph.
Wednesday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 69. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 85.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Friday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 83.
Friday Night
Mostly cloudy, with a low around 64.
Saturday
Partly sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 66.
Sunday
Sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Waterloo IA
 42.49°N 92.35°W
Last Update:
5:57 am CDT Jul 6, 2026
Forecast Valid:
10am CDT Jul 6, 2026-6pm CDT Jul 12, 2026
 
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