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.

Overcast

59°F

15°C

Humidity 58%
Wind Speed E 13 G 23 mph
Barometer 30.05 in (1017.7 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 22 May 10:54 am CDT
Extended Forecast for

Waterloo IA

  • Today

    Today: Mostly cloudy, with a high near 69. East southeast wind around 13 mph, with gusts as high as 21 mph.

    High: 69 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 52. East southeast wind 5 to 11 mph.

    Low: 52 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 75. South southeast wind 5 to 7 mph becoming west in the afternoon.

    High: 75 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Cloudy, then gradually becoming partly cloudy, with a low around 52. West northwest wind around 6 mph becoming calm in the evening.

    Low: 52 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 80. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 69. East southeast wind around 13 mph, with gusts as high as 21 mph.
Tonight
Mostly cloudy, with a low around 52. East southeast wind 5 to 11 mph.
Saturday
Partly sunny, with a high near 75. South southeast wind 5 to 7 mph becoming west in the afternoon.
Saturday Night
Cloudy, then gradually becoming partly cloudy, with a low around 52. West northwest wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 80. Calm wind becoming south southwest around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 55.
Memorial Day
Sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 59.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 60.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Wednesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 62.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waterloo IA
 42.49°N 92.35°W
Last Update:
10:47 am CDT May 22, 2026
Forecast Valid:
11am CDT May 22, 2026-6pm CDT May 28, 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