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.

Overcast

17°F

-8°C

Humidity 92%
Wind Speed S 3 mph
Barometer 30.06 in (1019.5 mb)
Dewpoint 15°F (-9°C)
Visibility 7.00 mi
Last update 1 Dec 8:54 pm CST
Extended Forecast for

Waterloo IA

  • Tonight

    Tonight: Mostly cloudy, with a low around 12. West southwest wind 3 to 5 mph.

    Low: 12 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 26. Wind chill values as low as 5. Light southwest wind becoming south southwest 5 to 10 mph in the morning.

    High: 26 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow after midnight. Cloudy, with a temperature falling to near 21 by 11pm, then rising to around 28 during the remainder of the night. South wind 8 to 10 mph becoming west after midnight.

    Low: 21 °F⇑

    Mostly Cloudy
    then Slight
    Chance Snow

  • Wednesday

    Wednesday: A 30 percent chance of snow before noon. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 15 by 5pm. Wind chill values as low as zero. North northwest wind 8 to 15 mph, with gusts as high as 25 mph. Little or no snow accumulation expected.

    High: 30 °F⇓

    Chance Snow
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around -10. North northwest wind 5 to 14 mph, with gusts as high as 21 mph.

    Low: -10 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and cold, with a high near 8.

    High: 8 °F

    Cold

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 0.

    Low: 0 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 29.

    High: 29 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 12. West southwest wind 3 to 5 mph.
Tuesday
Partly sunny, with a high near 26. Wind chill values as low as 5. Light southwest wind becoming south southwest 5 to 10 mph in the morning.
Tuesday Night
A 20 percent chance of snow after midnight. Cloudy, with a temperature falling to near 21 by 11pm, then rising to around 28 during the remainder of the night. South wind 8 to 10 mph becoming west after midnight.
Wednesday
A 30 percent chance of snow before noon. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 15 by 5pm. Wind chill values as low as zero. North northwest wind 8 to 15 mph, with gusts as high as 25 mph. Little or no snow accumulation expected.
Wednesday Night
Mostly clear, with a low around -10. North northwest wind 5 to 14 mph, with gusts as high as 21 mph.
Thursday
Sunny and cold, with a high near 8.
Thursday Night
Partly cloudy, with a low around 0.
Friday
Partly sunny, with a high near 29.
Friday Night
Mostly cloudy, with a low around 15.
Saturday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 26.
Saturday Night
Mostly cloudy, with a low around 9.
Sunday
Partly sunny, with a high near 18.
Sunday Night
Mostly cloudy, with a low around 1.
Monday
Mostly cloudy, with a high near 26.
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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:
6:01 pm CST Dec 1, 2025
Forecast Valid:
9pm CST Dec 1, 2025-6pm CST Dec 8, 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