Severe Weather and Heavy Rain from the Ohio Valley to the Mid-Atlantic; Heat Persists in the South-Central U.S.

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected across portions of the Ohio Valley into southern Mid-Atlantic and Carolinas. Rounds of strong thunderstorms are expected to develop across the northern and central Plains. Sweltering heat remains most persistent across the South-Central Plains and Lower/Middle Mississippi Valley through next week. Read More >

Hazardous Weather Conditions

Current conditions at

Waterloo, Waterloo Municipal Airport (KALO)

Lat: 42.55°NLon: 92.4°WElev: 873ft.

Overcast

69°F

21°C

Humidity 93%
Wind Speed SE 9 mph
Barometer 30.08 in (1018.1 mb)
Dewpoint 67°F (19°C)
Visibility 8.00 mi
Last update 6 Sep 7:54 am CDT
Extended Forecast for

Waterloo Municipal Airport IA

  • Today

    Today: Partly sunny, with a high near 82. East southeast wind 8 to 11 mph.

    High: 82 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 63. Southeast wind around 9 mph.

    Low: 63 °F

    Mostly Cloudy

  • Labor Day

    Labor Day: Mostly sunny, with a high near 81. Breezy, with a southeast wind 9 to 16 mph, with gusts as high as 23 mph.

    High: 81 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 65. Southeast wind around 15 mph, with gusts as high as 21 mph.

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm.  Mostly sunny, with a high near 89. South southeast wind around 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 40%.

    High: 89 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm.  Low around 68. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 68 °F

    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 82. East southeast wind 8 to 11 mph.
Tonight
Mostly cloudy, with a low around 63. Southeast wind around 9 mph.
Labor Day
Mostly sunny, with a high near 81. Breezy, with a southeast wind 9 to 16 mph, with gusts as high as 23 mph.
Monday Night
Partly cloudy, with a low around 65. Southeast wind around 15 mph, with gusts as high as 21 mph.
Tuesday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 89. South southeast wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 68. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 58.
Friday
Sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 61.
Saturday
Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Waterloo Municipal Airport IA
 42.55°N 92.41°W
5:57 am CDT Sep 6, 2026
8am CDT Sep 6, 2026-6pm CDT Sep 12, 2026
 
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Additional Resources

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Hourly Weather Forecast

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