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

18°F

-8°C

Humidity 71%
Wind Speed S 8 mph
Barometer 29.88 in (1013.5 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill8°F (-13°C)
Last update 5 Dec 4:54 am CST
Extended Forecast for

Waterloo IA

Winter Storm Watch December 6, 06:00pm until December 7, 06:00am
Click here for hazard details and duration
Winter Storm Watch

  • Today

    Today: Increasing clouds, with a high near 31. Wind chill values as low as zero. South southwest wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 31 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A 20 percent chance of snow before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 13. West southwest wind 6 to 11 mph becoming northwest after midnight. Winds could gust as high as 21 mph.

    Low: 13 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow after noon. Increasing clouds, with a high near 22. Light and variable wind becoming east around 6 mph in the afternoon.

    High: 22 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: Snow. The snow could be heavy at times. Low around 11. Wind chill values as low as 5. East wind 7 to 10 mph becoming north northeast after midnight. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 11 °F

    Heavy Snow

  • Sunday

    Sunday: Mostly sunny, with a high near 17. North wind 7 to 10 mph.

    High: 17 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around -5.

    Low: -5 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 24.

    High: 24 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 36.

    High: 36 °F

    Mostly Cloudy

Detailed Forecast

Today
Increasing clouds, with a high near 31. Wind chill values as low as zero. South southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Tonight
A 20 percent chance of snow before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 13. West southwest wind 6 to 11 mph becoming northwest after midnight. Winds could gust as high as 21 mph.
Saturday
A 20 percent chance of snow after noon. Increasing clouds, with a high near 22. Light and variable wind becoming east around 6 mph in the afternoon.
Saturday Night
Snow. The snow could be heavy at times. Low around 11. Wind chill values as low as 5. East wind 7 to 10 mph becoming north northeast after midnight. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Sunday
Mostly sunny, with a high near 17. North wind 7 to 10 mph.
Sunday Night
Mostly cloudy, with a low around -5.
Monday
Partly sunny, with a high near 24.
Monday Night
Mostly cloudy, with a low around 14.
Tuesday
Mostly cloudy, with a high near 36.
Tuesday Night
A 40 percent chance of rain before midnight. Cloudy, with a low around 23.
Wednesday
Mostly cloudy, with a high near 32.
Wednesday Night
Mostly cloudy, with a low around 5.
Thursday
Partly sunny, with a high near 21.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waterloo IA
 42.49°N 92.35°W
Last Update:
3:16 am CST Dec 5, 2025
Forecast Valid:
5am CST Dec 5, 2025-6pm CST Dec 11, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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