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

87°F

31°C

Humidity 63%
Wind Speed S 21 G 30 mph
Barometer 29.69 in (1004.6 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 21 Jun 10:54 am CDT
Extended Forecast for

5 Miles SW Tripoli IA

Heat Advisory June 21, 12:00pm until June 22, 09:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Sunny, with a high near 93. Heat index values as high as 103. Windy, with a south southwest wind around 25 mph, with gusts as high as 37 mph.

    High: 93 °F

    Sunny and
    Windy

  • Tonight

    Tonight: Mostly clear, with a low around 76. Windy, with a south southwest wind 18 to 23 mph, with gusts as high as 31 mph.

    Low: 76 °F

    Mostly Clear
    and Windy

  • Sunday

    Sunday: Sunny, with a high near 93. Heat index values as high as 101. Windy, with a south wind 18 to 25 mph, with gusts as high as 36 mph.

    High: 93 °F

    Sunny and
    Windy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. Windy, with a south southwest wind 18 to 21 mph, with gusts as high as 31 mph.

    Low: 75 °F

    Mostly Clear
    and Windy

  • Monday

    Monday: Showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 89. Breezy, with a south southwest wind 15 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 89 °F

    Breezy. Sunny
    then Showers
    Likely

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 66. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 66 °F

    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.

    High: 80 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 67. Chance of precipitation is 80%.

    Low: 67 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 84. Chance of precipitation is 80%.

    High: 84 °F

    Showers

Detailed Forecast

Today
Sunny, with a high near 93. Heat index values as high as 103. Windy, with a south southwest wind around 25 mph, with gusts as high as 37 mph.
Tonight
Mostly clear, with a low around 76. Windy, with a south southwest wind 18 to 23 mph, with gusts as high as 31 mph.
Sunday
Sunny, with a high near 93. Heat index values as high as 101. Windy, with a south wind 18 to 25 mph, with gusts as high as 36 mph.
Sunday Night
Mostly clear, with a low around 75. Windy, with a south southwest wind 18 to 21 mph, with gusts as high as 31 mph.
Monday
Showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 89. Breezy, with a south southwest wind 15 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and possibly a thunderstorm. Low around 66. Chance of precipitation is 90%. 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 80. Chance of precipitation is 70%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 67. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm. High near 84. Chance of precipitation is 80%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 68. Chance of precipitation is 80%.
Thursday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 82. Chance of precipitation is 70%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Tripoli IA
 42.77°N 92.31°W
Last Update:
9:57 am CDT Jun 21, 2025
Forecast Valid:
11am CDT Jun 21, 2025-6pm CDT Jun 27, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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