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

78°F

26°C

Humidity 30%
Wind Speed NW 17 G 31 mph
Barometer 29.50 in (998.6 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 4 May 2:54 pm CDT
Extended Forecast for

Waterloo IA

  • This Afternoon

    This Afternoon: A slight chance of showers before 4pm, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 79. Breezy, with a west northwest wind around 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Increasing clouds, with a low around 44. Breezy, with a north northwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 20%.

    Low: 44 °F

    Slight Chance
    T-storms and
    Breezy then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 57. Northwest wind 6 to 11 mph.

    High: 57 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37. North wind 6 to 9 mph.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 55. North northwest wind 6 to 10 mph.

    High: 55 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A slight chance of showers before 4pm, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 79. Breezy, with a west northwest wind around 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Tonight
A slight chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Increasing clouds, with a low around 44. Breezy, with a north northwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 57. Northwest wind 6 to 11 mph.
Tuesday Night
Mostly cloudy, with a low around 37. North wind 6 to 9 mph.
Wednesday
Mostly sunny, with a high near 55. North northwest wind 6 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 37.
Thursday
Mostly sunny, with a high near 65.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Mostly sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 43.
Saturday
Sunny, with a high near 72.
Saturday Night
Mostly cloudy, with a low around 47.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 67.
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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:
1:37 pm CDT May 4, 2026
Forecast Valid:
3pm CDT May 4, 2026-6pm CDT May 10, 2026
 
Forecast Discussion
 
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Additional Resources

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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