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.

A Few Clouds

73°F

23°C

Humidity 81%
Wind Speed Calm
Barometer 30.00 in (1015.3 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 4 Aug 11:54 am CDT
Extended Forecast for

Waterloo IA

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely, mainly before 1pm. Partly sunny, with a steady temperature around 76. Northwest wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 3am. Low around 61. North northwest wind 5 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 61 °F

    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 10am, then a slight chance of showers after 3pm. Partly sunny, with a high near 74. North wind 3 to 5 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers before 1am. Mostly clear, with a low around 55. Light north wind.

    Low: 55 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 79. Light and variable wind.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly before 1pm. Partly sunny, with a steady temperature around 76. Northwest wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms, mainly before 3am. Low around 61. North northwest wind 5 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers and thunderstorms before 10am, then a slight chance of showers after 3pm. Partly sunny, with a high near 74. North wind 3 to 5 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 20 percent chance of showers before 1am. Mostly clear, with a low around 55. Light north wind.
Thursday
Sunny, with a high near 79. Light and variable wind.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 65.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 70.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
A 40 percent chance of showers. Partly cloudy, with a low around 69.
Monday
Partly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waterloo IA
 42.51°N 92.35°W
Last Update:
8:52 am CDT Aug 4, 2026
Forecast Valid:
12pm CDT Aug 4, 2026-6pm CDT Aug 10, 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