Lala Impacting Hawaii; Flash Flooding Risks; Excessive Heat

Lala will continue to impact Hawaii through the weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Thunderstorms, heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians and the mid-Atlantic through today. Record heat continues for areas of the Mississippi Valley into the Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

Waterloo, Waterloo Municipal Airport (KALO)

Lat: 42.55°NLon: 92.4°WElev: 873ft.

Overcast

74°F

23°C

Humidity 91%
Wind Speed NW 10 mph
Barometer 30.04 in (1016.7 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 16 Aug 8:54 am CDT
Extended Forecast for

Waterloo IA

  • Today

    Today: Partly sunny, with a high near 79. North northwest wind 8 to 11 mph, with gusts as high as 18 mph.

    High: 79 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy fog after 4am.  Otherwise, mostly clear, with a low around 62. Northwest wind 3 to 8 mph.

    Low: 62 °F

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 7am.  Otherwise, sunny, with a high near 81. Calm wind becoming west around 6 mph in the afternoon.

    High: 81 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am.  Increasing clouds, with a low around 66. South southwest wind 3 to 6 mph.  Chance of precipitation is 30%.

    Low: 66 °F

    Partly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm.  Partly sunny, with a high near 80. West wind 5 to 7 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers.  Mostly cloudy, with a low around 63. Chance of precipitation is 60%. New rainfall amounts between three quarters and one inch possible.

    Low: 63 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 79. North northwest wind 8 to 11 mph, with gusts as high as 18 mph.
Tonight
Patchy fog after 4am. Otherwise, mostly clear, with a low around 62. Northwest wind 3 to 8 mph.
Monday
Patchy fog before 7am. Otherwise, sunny, with a high near 81. Calm wind becoming west around 6 mph in the afternoon.
Monday Night
A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Increasing clouds, with a low around 66. South southwest wind 3 to 6 mph. Chance of precipitation is 30%.
Tuesday
A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 80. West wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 60%. New rainfall amounts between three quarters and one inch possible.
Wednesday
Mostly sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 61.
Friday
Mostly sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
Waterloo IA
 42.49°N 92.35°W
7:56 am CDT Aug 16, 2026
9am CDT Aug 16, 2026-6pm CDT Aug 22, 2026
 
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Additional Resources

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Hourly Weather Forecast

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