Severe Storms and Heavy Rain in Texas; Record Heat Along the East Coast

Scattered severe storms with large hail, isolated severe gusts, and localized flooding are expected across parts of west Texas. Isolated flash flooding is also possible in the central Gulf coast. An early season heat wave will continue to impact the eastern U.S. today, before isolated severe storms move across the central Appalachians into the Mid-Atlantic and far southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

Waterloo, Waterloo Municipal Airport (KALO)

Lat: 42.55°NLon: 92.4°WElev: 873ft.

A Few Clouds with Haze

59°F

15°C

Humidity 48%
Wind Speed Calm
Barometer 30.29 in (1026.1 mb)
Dewpoint 39°F (4°C)
Visibility 4.00 mi
Last update 20 May 12:54 pm CDT
Extended Forecast for

Waterloo IA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 64. North northeast wind around 8 mph.

    High: 64 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 45. East northeast wind 5 to 8 mph.

    Low: 45 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 62. East wind 9 to 11 mph, with gusts as high as 18 mph.

    High: 62 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 1am.  Mostly cloudy, with a low around 45. East wind around 11 mph.

    Low: 45 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A 50 percent chance of showers, mainly after 1pm.  Mostly cloudy, with a high near 63. East wind 11 to 14 mph, with gusts as high as 23 mph.  New precipitation amounts between a tenth and quarter of an inch possible.

    High: 63 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly before 1am.  Mostly cloudy, with a low around 48. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Showers
    Likely

  • Saturday

    Saturday: Partly sunny, with a high near 72.

    High: 72 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 64. North northeast wind around 8 mph.
Tonight
Mostly cloudy, with a low around 45. East northeast wind 5 to 8 mph.
Thursday
Mostly cloudy, with a high near 62. East wind 9 to 11 mph, with gusts as high as 18 mph.
Thursday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 45. East wind around 11 mph.
Friday
A 50 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 63. East wind 11 to 14 mph, with gusts as high as 23 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 48. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Partly sunny, with a high near 72.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 53.
Memorial Day
Sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Waterloo IA
 42.49°N 92.35°W
1:31 pm CDT May 20, 2026
1pm CDT May 20, 2026-6pm CDT May 26, 2026
 
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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