Heat Wave Persists Over the Central U.S.; Significant Flooding Expected in the Northern Mid-Atlantic Tuesday

Dangerous and extreme heat will remain across portions of the Central U.S. this week, persisting across the Mid to Lower Mississippi Valleys, Gulf Coast, Southern Plains and portions of Texas. A heat wave over the Southwest will intensify late this week. Severe thunderstorms and flash flooding will spread from the Great Lakes/Ohio Valley to the Mid-Atlantic and Northeast the next few days. Read More >

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Overcast

69°F

21°C

Humidity 93%
Wind Speed N 17 G 28 mph
Barometer 29.75 in (1006.9 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 28 Jul 4:52 am CDT
Extended Forecast for

Arlington Heights IL

  • Today

    Today: Mostly sunny, with a high near 79. North northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 79 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 62. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 83. North northeast wind around 5 mph, with gusts as high as 10 mph.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64. North northeast wind around 5 mph becoming calm  in the evening.

    Low: 64 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 88. Calm wind becoming west around 5 mph in the afternoon. Winds could gust as high as 10 mph.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 68.

    Low: 68 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm.  Mostly cloudy, with a high near 84. Chance of precipitation is 40%.

    High: 84 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly after 1am.  Mostly cloudy, with a low around 67.

    Low: 67 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm.  Mostly cloudy, with a high near 79.

    High: 79 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 79. North northeast wind around 10 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 62. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 83. North northeast wind around 5 mph, with gusts as high as 10 mph.
Wednesday Night
Mostly clear, with a low around 64. North northeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 88. Calm wind becoming west around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Thursday Night
Mostly cloudy, with a low around 68.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 84. Chance of precipitation is 40%.
Friday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 67.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79.
Saturday Night
Partly cloudy, with a low around 65.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 64.
Monday
Sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Arlington Heights IL
 42.09°N 87.98°W
2:36 am CDT Jul 28, 2026
5am CDT Jul 28, 2026-6pm CDT Aug 3, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database