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 Calm
Barometer 29.97 in (1014.4 mb)
Dewpoint 61°F (16°C)
Visibility 9.00 mi
Last update 3 Aug 6:54 am CDT
Extended Forecast for

Waterloo IA

  • Today

    Today: Sunny, with a high near 82. Light southeast wind becoming south southeast 5 to 10 mph in the morning.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 65. South southeast wind 8 to 10 mph.

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers after 5pm. Partly sunny, with a high near 82. South wind 6 to 8 mph becoming northwest in the afternoon. New precipitation amounts of less than a tenth of an inch possible.

    High: 82 °F

    Partly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 62. North wind 5 to 8 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 62 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 75. Northeast wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 75 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 57. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 57 °F

    Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 82. Light southeast wind becoming south southeast 5 to 10 mph in the morning.
Tonight
Partly cloudy, with a low around 65. South southeast wind 8 to 10 mph.
Tuesday
A 30 percent chance of showers after 5pm. Partly sunny, with a high near 82. South wind 6 to 8 mph becoming northwest in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm. Low around 62. North wind 5 to 8 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 75. Northeast wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 57. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 61.
Friday
Sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 64.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 68.
Sunday
Mostly sunny, with a high near 88.
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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:
6:12 am CDT Aug 3, 2026
Forecast Valid:
6am CDT Aug 3, 2026-6pm CDT Aug 9, 2026
 
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