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

72°F

22°C

Humidity 87%
Wind Speed S 6 mph
Barometer 30.01 in (1015.6 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 16 Aug 4:54 am CDT
Extended Forecast for

Denver IA

Heat Advisory August 16, 12:00pm until August 16, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Isolated showers and thunderstorms. Mostly cloudy, with a low around 68. South southeast wind around 6 mph. Chance of precipitation is 20%.

    Low: 68 °F

    Isolated
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 9am. Mostly sunny, with a high near 90. Heat index values as high as 103. South wind 7 to 11 mph, with gusts as high as 18 mph.

    High: 90 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 3am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 71. South southeast wind 6 to 8 mph becoming east after midnight. Chance of precipitation is 20%.

    Low: 71 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. South southeast wind 6 to 10 mph.

    High: 88 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 71. Southeast wind around 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 89. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Partly sunny, with a high near 81.

    High: 81 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

Detailed Forecast

Overnight
Isolated showers and thunderstorms. Mostly cloudy, with a low around 68. South southeast wind around 6 mph. Chance of precipitation is 20%.
Saturday
A 20 percent chance of showers and thunderstorms before 9am. Mostly sunny, with a high near 90. Heat index values as high as 103. South wind 7 to 11 mph, with gusts as high as 18 mph.
Saturday Night
A slight chance of showers and thunderstorms before 3am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 71. South southeast wind 6 to 8 mph becoming east after midnight. Chance of precipitation is 20%.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. South southeast wind 6 to 10 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 71. Southeast wind around 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 89. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Tuesday
Partly sunny, with a high near 81.
Tuesday Night
Partly cloudy, with a low around 61.
Wednesday
Mostly sunny, with a high near 76.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Denver IA
 42.68°N 92.31°W
Last Update:
4:35 am CDT Aug 16, 2025
Forecast Valid:
5am CDT Aug 16, 2025-6pm CDT Aug 22, 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