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.

Mostly Cloudy

12°F

-11°C

Humidity 67%
Wind Speed NW 20 G 30 mph
Barometer 30.07 in (1020.0 mb)
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill-6°F (-21°C)
Last update 16 Mar 7:54 pm CDT
Extended Forecast for

Waterloo IA

  • Tonight

    Tonight: Partly cloudy, with a low around 2. Wind chill values as low as -10. Blustery, with a northwest wind 9 to 17 mph, with gusts as high as 28 mph.

    Low: 2 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of snow, mainly after 5pm. Increasing clouds, with a high near 25. Wind chill values as low as -10. West northwest wind 5 to 11 mph becoming south in the afternoon. New snow accumulation of less than a half inch possible.

    High: 25 °F

    Mostly Sunny
    then Chance
    Snow

  • Tuesday Night

    Tuesday Night: Snow, mainly before midnight. Steady temperature around 23. Wind chill values as low as 10. South southeast wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 23 °F

    Snow then
    Slight Chance
    Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 45. South wind around 7 mph becoming west in the afternoon.

    High: 45 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 32. South wind around 6 mph.

    Low: 32 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 2. Wind chill values as low as -10. Blustery, with a northwest wind 9 to 17 mph, with gusts as high as 28 mph.
Tuesday
A 30 percent chance of snow, mainly after 5pm. Increasing clouds, with a high near 25. Wind chill values as low as -10. West northwest wind 5 to 11 mph becoming south in the afternoon. New snow accumulation of less than a half inch possible.
Tuesday Night
Snow, mainly before midnight. Steady temperature around 23. Wind chill values as low as 10. South southeast wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Wednesday
Mostly sunny, with a high near 45. South wind around 7 mph becoming west in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 32. South wind around 6 mph.
Thursday
Sunny, with a high near 56.
Thursday Night
Mostly cloudy, with a low around 39.
Friday
Mostly sunny, with a high near 66.
Friday Night
Mostly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Partly cloudy, with a low around 29.
Monday
Partly sunny, with a high near 45.
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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:
6:43 pm CDT Mar 16, 2026
Forecast Valid:
8pm CDT Mar 16, 2026-6pm CDT Mar 23, 2026
 
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Additional Resources

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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