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

76°F

24°C

Humidity 31%
Wind Speed W 8 mph
Barometer 29.81 in (1009.0 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 15 Jun 6:54 pm CDT
Extended Forecast for

Waterloo IA

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 1am and 4am. Increasing clouds, with a low around 57. South southwest wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 57 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: Sunny, with a high near 74. Breezy, with a northwest wind 11 to 17 mph, with gusts as high as 28 mph.

    High: 74 °F

    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: A chance of showers between 2am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 55. Calm wind becoming south southeast 5 to 9 mph after midnight. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 79. Southeast wind 13 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 79 °F

    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55. Breezy, with a west northwest wind around 18 mph, with gusts as high as 28 mph.

    Low: 55 °F

    Partly Cloudy
    and Breezy

  • Thursday

    Thursday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms between 1am and 4am. Increasing clouds, with a low around 57. South southwest wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 74. Breezy, with a northwest wind 11 to 17 mph, with gusts as high as 28 mph.
Tuesday Night
A chance of showers between 2am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 55. Calm wind becoming south southeast 5 to 9 mph after midnight. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and possibly a thunderstorm. High near 79. Southeast wind 13 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Wednesday Night
Partly cloudy, with a low around 55. Breezy, with a west northwest wind around 18 mph, with gusts as high as 28 mph.
Thursday
Mostly sunny, with a high near 74.
Thursday Night
Mostly clear, with a low around 53.
Juneteenth
Sunny, with a high near 77.
Friday Night
Partly cloudy, with a low around 56.
Saturday
A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 78.
Saturday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Sunday
A 50 percent chance of showers. Partly sunny, with a high near 78.
Sunday Night
A 40 percent chance of showers. Partly cloudy, with a low around 59.
Monday
Mostly sunny, with a high near 77.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waterloo IA
 42.49°N 92.35°W
Last Update:
6:11 pm CDT Jun 15, 2026
Forecast Valid:
7pm CDT Jun 15, 2026-6pm CDT Jun 22, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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