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

64°F

18°C

Humidity 90%
Wind Speed W 7 mph
Barometer 29.80 in (1008.6 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 17 Jun 5:54 am CDT
Extended Forecast for

Waterloo IA

  • Today

    Today: Showers and thunderstorms likely, mainly after 4pm. Increasing clouds, with a high near 85. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Partly Sunny
    then T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 64. North northeast wind around 6 mph becoming light and variable. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    T-storms
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. High near 78. East wind 6 to 10 mph becoming north northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 78 °F

    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60. West wind 5 to 10 mph.

    Low: 60 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Sunny, with a high near 87. West wind 6 to 9 mph.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Mostly Clear
    then Chance
    T-storms

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 91. Breezy.

    High: 91 °F

    Slight Chance
    T-storms and
    Breezy

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 76. Breezy.

    Low: 76 °F

    Slight Chance
    T-storms and
    Breezy

  • Saturday

    Saturday: Sunny, with a high near 95. Breezy.

    High: 95 °F

    Sunny then
    Sunny and
    Breezy

Detailed Forecast

Today
Showers and thunderstorms likely, mainly after 4pm. Increasing clouds, with a high near 85. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 64. North northeast wind around 6 mph becoming light and variable. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. High near 78. East wind 6 to 10 mph becoming north northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Partly cloudy, with a low around 60. West wind 5 to 10 mph.
Juneteenth
Sunny, with a high near 87. West wind 6 to 9 mph.
Thursday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 91. Breezy.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 76. Breezy.
Saturday
Sunny, with a high near 95. Breezy.
Saturday Night
Mostly clear, with a low around 76. Breezy.
Sunday
Sunny, with a high near 94. Breezy.
Sunday Night
Mostly clear, with a low around 75. Breezy.
Monday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Waterloo IA
 42.51°N 92.38°W
Last Update:
5:55 am CDT Jun 17, 2025
Forecast Valid:
6am CDT Jun 17, 2025-6pm CDT Jun 23, 2025
 
Forecast Discussion
 
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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