National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rainfall and Severe Thunderstorm Threats for the Plains and Southeast

A frontal boundary extending from the western High Plains to the Southeast will focus additional showers and thunderstorms this weekend. Some of these storms may become severe, alongside frequent lightning, and isolated instances of flash flooding. Meanwhile dry conditions will continue for the Great Basin where fire weather concerns linger. For the mid-Atlantic and Northeast, seasonable weather. Read More >

Current conditions at

Waterloo, Waterloo Municipal Airport (KALO)

Lat: 42.55°NLon: 92.4°WElev: 873ft.

Fair

74°F

23°C

Humidity 54%
Wind Speed SE 7 mph
Barometer 30.20 in (1022.5 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 3 Aug 10:54 am CDT
Extended Forecast for

Waterloo IA

  • Today

    Today: Mostly sunny, with a high near 78. South southeast wind 5 to 8 mph.

    High: 78 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 57. Southeast wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 79. Calm wind becoming southeast around 6 mph in the morning.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 61. East southeast wind around 5 mph becoming calm in the evening.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82. Southeast wind 3 to 7 mph.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 78. South southeast wind 5 to 8 mph.
Tonight
Partly cloudy, with a low around 57. Southeast wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 79. Calm wind becoming southeast around 6 mph in the morning.
Monday Night
Partly cloudy, with a low around 61. East southeast wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 82. Southeast wind 3 to 7 mph.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
Mostly sunny, with a high near 85.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67.
Thursday
Mostly sunny, with a high near 88.
Thursday Night
Partly cloudy, with a low around 69.
Friday
Sunny, with a high near 89.
Friday Night
Partly cloudy, with a low around 72.
Saturday
Mostly sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waterloo IA
 42.49°N 92.35°W
Last Update:
10:51 am CDT Aug 3, 2025
Forecast Valid:
11am CDT Aug 3, 2025-6pm CDT Aug 9, 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