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

89°F

32°C

Humidity 36%
Wind Speed S 9 mph
Barometer 30.08 in (1018.1 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 3 Oct 2:54 pm CDT
Extended Forecast for

Waterloo IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 90. South southwest wind around 11 mph.

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 66. South wind 6 to 8 mph.

    Low: 66 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 89. Windy, with a south wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 34 mph.

    High: 89 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 64. Breezy, with a south wind 14 to 17 mph, with gusts as high as 25 mph.

    Low: 64 °F

    Mostly Clear
    and Breezy
    then Clear

  • Sunday

    Sunday: Sunny, with a high near 85. Windy, with a south wind 14 to 23 mph, with gusts as high as 36 mph.

    High: 85 °F

    Sunny and
    Windy

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 56. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 56 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 68. Chance of precipitation is 50%.

    High: 68 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 90. South southwest wind around 11 mph.
Tonight
Clear, with a low around 66. South wind 6 to 8 mph.
Saturday
Sunny, with a high near 89. Windy, with a south wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 34 mph.
Saturday Night
Mostly clear, with a low around 64. Breezy, with a south wind 14 to 17 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 85. Windy, with a south wind 14 to 23 mph, with gusts as high as 36 mph.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 56. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Monday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 68. Chance of precipitation is 50%.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 50.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
Clear, with a low around 44.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 71.
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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:
2:51 pm CDT Oct 3, 2025
Forecast Valid:
3pm CDT Oct 3, 2025-6pm CDT Oct 9, 2025
 
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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