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 and Breezy

90°F

32°C

Humidity 59%
Wind Speed S 22 G 36 mph
Barometer 29.68 in (1004.1 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 21 Jun 12:54 pm CDT
Extended Forecast for

2 Miles E Waterloo IA

Heat Advisory June 21, 01:04pm until June 22, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 21, 01:04pm until June 22, 09:00pm

    NOW until 9:00pm Sun

    Heat Advisory

  • This Afternoon

    High: 95 °F

    Sunny and
    Windy

  • Tonight

    Tonight: Mostly clear, with a low around 77. Windy, with a south southwest wind 16 to 21 mph, with gusts as high as 30 mph.

    Low: 77 °F

    Mostly Clear
    and Windy

  • Sunday

    Sunday: Sunny, with a high near 96. Heat index values as high as 103. Windy, with a south wind 14 to 22 mph, with gusts as high as 34 mph.

    High: 96 °F

    Sunny and
    Windy

  • Sunday Night

    Sunday Night: Clear, with a low around 76. Breezy, with a south wind 16 to 20 mph, with gusts as high as 31 mph.

    Low: 76 °F

    Clear and
    Breezy

  • Monday

    Monday: Showers likely and possibly a thunderstorm after 1pm. Sunny, with a high near 93. Southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 93 °F

    Sunny then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 68. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 68 °F

    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.

    High: 83 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. Chance of precipitation is 70%.

    Low: 69 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 95. Heat index values as high as 103. Windy, with a south southwest wind around 23 mph, with gusts as high as 33 mph.
Tonight
Mostly clear, with a low around 77. Windy, with a south southwest wind 16 to 21 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 96. Heat index values as high as 103. Windy, with a south wind 14 to 22 mph, with gusts as high as 34 mph.
Sunday Night
Clear, with a low around 76. Breezy, with a south wind 16 to 20 mph, with gusts as high as 31 mph.
Monday
Showers likely and possibly a thunderstorm after 1pm. Sunny, with a high near 93. Southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and possibly a thunderstorm. Low around 68. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. Chance of precipitation is 70%.
Wednesday
Showers and possibly a thunderstorm. High near 87. Chance of precipitation is 80%.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 70. Chance of precipitation is 70%.
Thursday
Showers and thunderstorms likely. Partly sunny, with a high near 85. Chance of precipitation is 60%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Waterloo IA
 42.49°N 92.32°W
Last Update:
12:41 pm CDT Jun 21, 2025
Forecast Valid:
1pm CDT Jun 21, 2025-6pm CDT Jun 27, 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