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

52°F

11°C

Humidity 75%
Wind Speed S 8 mph
Barometer 29.85 in (1010.9 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 21 Apr 4:54 am CDT
Extended Forecast for

Waterloo IA

  • Today

    Today: Sunny, with a high near 79. South wind 7 to 10 mph becoming northwest in the afternoon.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 50. North wind around 6 mph becoming light and variable after midnight.

    Low: 50 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81. East southeast wind 5 to 13 mph becoming south in the afternoon. Winds could gust as high as 20 mph.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60. South wind 11 to 14 mph, with gusts as high as 21 mph.

    Low: 60 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 75. Windy, with a south wind 14 to 21 mph, with gusts as high as 33 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Partly Sunny
    and Breezy
    then Chance
    T-storms and
    Windy

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 4am, then showers likely. Low around 51. Breezy. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 51 °F

    Showers and
    Breezy

  • Friday

    Friday: A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 65.

    High: 65 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 79. South wind 7 to 10 mph becoming northwest in the afternoon.
Tonight
Clear, with a low around 50. North wind around 6 mph becoming light and variable after midnight.
Wednesday
Sunny, with a high near 81. East southeast wind 5 to 13 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 60. South wind 11 to 14 mph, with gusts as high as 21 mph.
Thursday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 75. Windy, with a south wind 14 to 21 mph, with gusts as high as 33 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and possibly a thunderstorm before 4am, then showers likely. Low around 51. Breezy. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday
A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 65.
Friday Night
Mostly clear, with a low around 43.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
Mostly cloudy, with a low around 44.
Sunday
Mostly sunny, with a high near 61.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 47.
Monday
A 50 percent chance of showers. Partly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waterloo IA
 42.49°N 92.35°W
Last Update:
3:07 am CDT Apr 21, 2026
Forecast Valid:
5am CDT Apr 21, 2026-6pm CDT Apr 27, 2026
 
Forecast Discussion
 
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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