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

18°F

-8°C

Humidity 74%
Wind Speed S 7 mph
Barometer 29.83 in (1011.7 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill9°F (-13°C)
Last update 5 Dec 7:54 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: A slight chance of snow between 3pm and 4pm. Mostly cloudy, with a high near 32. Wind chill values as low as 5. South southwest wind 8 to 10 mph. Chance of precipitation is 20%.

    High: 32 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Tonight

    Tonight: A 20 percent chance of snow before 7pm. Mostly cloudy, with a low around 13. West southwest wind 7 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 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 southeast 5 to 8 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 southeast wind around 10 mph becoming north northeast after midnight. Winds could gust as high as 18 mph. 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
A slight chance of snow between 3pm and 4pm. Mostly cloudy, with a high near 32. Wind chill values as low as 5. South southwest wind 8 to 10 mph. Chance of precipitation is 20%.
Tonight
A 20 percent chance of snow before 7pm. Mostly cloudy, with a low around 13. West southwest wind 7 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Saturday
A 20 percent chance of snow after noon. Increasing clouds, with a high near 22. Light and variable wind becoming east southeast 5 to 8 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 southeast wind around 10 mph becoming north northeast after midnight. Winds could gust as high as 18 mph. 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. Breezy.
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 92.38°W
Last Update:
5:42 am CST Dec 5, 2025
Forecast Valid:
8am CST Dec 5, 2025-6pm CST Dec 11, 2025
 
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