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

47°F

8°C

Humidity 83%
Wind Speed SE 5 mph
Barometer 29.94 in (1014.1 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 19 Mar 9:54 pm CDT
Extended Forecast for

Waterloo IA

  • Tonight

    Tonight: Partly cloudy, with a low around 42. South wind 5 to 9 mph becoming west southwest after midnight.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 68. North northwest wind around 9 mph.

    High: 68 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41. Light and variable wind becoming south southeast around 6 mph after midnight.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 77. South southeast wind 6 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 18 mph.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50. South wind 9 to 11 mph becoming west southwest after midnight. Winds could gust as high as 20 mph.

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 62. Breezy.

    High: 62 °F

    Mostly Cloudy
    and Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 30. Blustery.

    Low: 30 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Monday

    Monday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 42. South wind 5 to 9 mph becoming west southwest after midnight.
Friday
Mostly sunny, with a high near 68. North northwest wind around 9 mph.
Friday Night
Mostly cloudy, with a low around 41. Light and variable wind becoming south southeast around 6 mph after midnight.
Saturday
Sunny, with a high near 77. South southeast wind 6 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
Partly cloudy, with a low around 50. South wind 9 to 11 mph becoming west southwest after midnight. Winds could gust as high as 20 mph.
Sunday
Mostly cloudy, with a high near 62. Breezy.
Sunday Night
Mostly clear, with a low around 30. Blustery.
Monday
Mostly sunny, with a high near 50.
Monday Night
Mostly cloudy, with a low around 38.
Tuesday
Mostly cloudy, with a high near 55.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
Partly sunny, with a high near 61.
Wednesday Night
Mostly cloudy, with a low around 42.
Thursday
Partly sunny, with a high near 57. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Waterloo IA
 42.49°N 92.35°W
Last Update:
10:21 pm CDT Mar 19, 2026
Forecast Valid:
10pm CDT Mar 19, 2026-6pm CDT Mar 26, 2026
 
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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