Heat Across the Center of the Nation; Severe Thunderstorms Across the Great Lakes and Ohio Valley

Heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest into Monday. Fire weather concerns continue for portions of the Intermountain West. Active monsoonal moisture fuels thunderstorms over the Southwest with possible flash flooding. Tropical cyclone Fausto in the Pacific, should weaken as it approaches Hawaii; Dangerous surf, swells and rip currents are expected. Read More >

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fog/Mist

76°F

24°C

Humidity 97%
Wind Speed E 9 mph
Barometer 29.84 in (1009.0 mb)
Dewpoint 75°F (24°C)
Visibility 2.00 mi
Heat Index75°F (24°C)
Last update 27 Jul 7:51 am CDT
Extended Forecast for

Lindenhurst IL

Heat Advisory July 27, 08:45am until July 27, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 27, 08:45am until July 27, 09:00pm

    NOW until 9:00pm Mon

    Heat Advisory

  • Today

    High: 89 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Partly cloudy, with a low around 67. West southwest wind 10 to 15 mph becoming north northeast after midnight. Winds could gust as high as 20 mph.

    Low: 67 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80. Northeast wind around 5 mph, with gusts as high as 10 mph.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 10am. Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 89. Heat index values as high as 102. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 67. West southwest wind 10 to 15 mph becoming north northeast after midnight. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 77. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 60. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
Sunny, with a high near 80. Northeast wind around 5 mph, with gusts as high as 10 mph.
Wednesday Night
Mostly clear, with a low around 64.
Thursday
Mostly sunny, with a high near 85.
Thursday Night
Partly cloudy, with a low around 66.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 82.
Friday Night
A chance of showers. Mostly cloudy, with a low around 64.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 80.
Saturday Night
Partly cloudy, with a low around 63.
Sunday
Mostly sunny, with a high near 80.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Lindenhurst IL
 42.42°N 88.02°W
8:06 am CDT Jul 27, 2026
8am CDT Jul 27, 2026-6pm CDT Aug 2, 2026
 
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Additional Resources

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Hourly Weather Forecast

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