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

28°F

-2°C

Humidity 63%
Wind Speed SW 10 mph
Barometer 30.18 in (1023.4 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 11 Jan 10:54 pm CST
Extended Forecast for

Waterloo IA

  • Tonight

    Tonight: Clear early, then becoming mostly cloudy, with a low around 25. Southwest wind 6 to 10 mph.

    Low: 25 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy through mid morning, then gradual clearing, with a high near 43. West southwest wind around 7 mph.

    High: 43 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a steady temperature around 36. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.

    Low: 36 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 47. Breezy, with a west wind 13 to 16 mph, with gusts as high as 28 mph.

    High: 47 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 25. Windy, with a northwest wind 15 to 24 mph, with gusts as high as 34 mph.

    Low: 25 °F

    Mostly Cloudy
    and Windy

  • Wednesday

    Wednesday: Partly sunny, with a high near 29. Windy.

    High: 29 °F

    Partly Sunny
    and Windy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 14. Blustery.

    Low: 14 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Thursday

    Thursday: A 20 percent chance of snow after noon. Partly sunny, with a high near 29.

    High: 29 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 25.

    Low: 25 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

Tonight
Clear early, then becoming mostly cloudy, with a low around 25. Southwest wind 6 to 10 mph.
Monday
Mostly cloudy through mid morning, then gradual clearing, with a high near 43. West southwest wind around 7 mph.
Monday Night
Increasing clouds, with a steady temperature around 36. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 47. Breezy, with a west wind 13 to 16 mph, with gusts as high as 28 mph.
Tuesday Night
Mostly cloudy, with a low around 25. Windy, with a northwest wind 15 to 24 mph, with gusts as high as 34 mph.
Wednesday
Partly sunny, with a high near 29. Windy.
Wednesday Night
Mostly clear, with a low around 14. Blustery.
Thursday
A 20 percent chance of snow after noon. Partly sunny, with a high near 29.
Thursday Night
A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 25.
Friday
A 50 percent chance of snow. Mostly cloudy, with a high near 34. Breezy.
Friday Night
Mostly cloudy, with a low around 11. Blustery.
Saturday
Mostly cloudy, with a high near 19.
Saturday Night
Partly cloudy, with a low around 8.
Sunday
Partly sunny, with a high near 24.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Waterloo IA
 42.51°N 92.35°W
Last Update:
10:51 pm CST Jan 11, 2026
Forecast Valid:
11pm CST Jan 11, 2026-6pm CST Jan 18, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation