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.

Fog/Mist

76°F

24°C

Humidity 97%
Wind Speed Calm
Barometer 29.86 in (1010.6 mb)
Dewpoint 75°F (24°C)
Visibility 6.00 mi
Heat Index75°F (24°C)
Last update 26 Jul 6:54 am CDT
Extended Forecast for

3 Miles S Dewar IA

Extreme Heat Watch July 26, 09:00pm until July 27, 10:00pm
Extreme Heat Warning July 26, 12:00pm until July 26, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch
Extreme Heat Warning

  • Today

    Today: Mostly sunny, with a high near 93. Heat index values as high as 109. Light and variable wind becoming west southwest 5 to 10 mph in the morning.

    High: 93 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 1am and 4am. Partly cloudy, with a low around 77. South wind around 11 mph. Chance of precipitation is 20%.

    Low: 77 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: Sunny, with a high near 94. Heat index values as high as 109. South southwest wind 8 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 71. Northwest wind 7 to 13 mph becoming north northeast after midnight.

    Low: 71 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87. North northeast wind 6 to 8 mph.

    High: 87 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 93. Heat index values as high as 109. Light and variable wind becoming west southwest 5 to 10 mph in the morning.
Tonight
A slight chance of showers and thunderstorms between 1am and 4am. Partly cloudy, with a low around 77. South wind around 11 mph. Chance of precipitation is 20%.
Monday
Sunny, with a high near 94. Heat index values as high as 109. South southwest wind 8 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Partly cloudy, with a low around 71. Northwest wind 7 to 13 mph becoming north northeast after midnight.
Tuesday
Mostly sunny, with a high near 87. North northeast wind 6 to 8 mph.
Tuesday Night
Mostly clear, with a low around 66.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 67.
Thursday
Mostly sunny, with a high near 86.
Thursday Night
A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 67.
Friday
A 40 percent chance of showers. Mostly sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 66.
Saturday
Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Dewar IA
 42.51°N 92.26°W
Last Update:
6:31 am CDT Jul 26, 2026
Forecast Valid:
7am CDT Jul 26, 2026-6pm CDT Aug 1, 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