National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair with Haze

64°F

18°C

Humidity 84%
Wind Speed W 6 mph
Barometer 30.13 in (1019.3 mb)
Dewpoint 59°F (15°C)
Visibility 5.00 mi
Last update 29 Aug 4:51 am CDT
Extended Forecast for

Lindenhurst IL

  • Today

    Today: A slight chance of sprinkles between 2pm and 3pm, then a chance of showers after 3pm. Partly sunny, with a high near 79. Southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.

    High: 79 °F

    Partly Sunny
    then Chance
    Showers

  • Tonight

    Tonight: A slight chance of rain before 2am, then a slight chance of showers between 2am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 68. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and noon. Partly sunny, with a high near 86. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    High: 86 °F

    Chance
    Showers then
    Partly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 70. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 70 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: Partly sunny, with a high near 88. South southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 88 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 89.

    High: 89 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of sprinkles between 2pm and 3pm, then a chance of showers after 3pm. Partly sunny, with a high near 79. Southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.
Tonight
A slight chance of rain before 2am, then a slight chance of showers between 2am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 68. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and noon. Partly sunny, with a high near 86. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Sunday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 70. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
Partly sunny, with a high near 88. South southwest wind around 10 mph, with gusts as high as 20 mph.
Monday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 72.
Tuesday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 89.
Tuesday Night
Partly cloudy, with a low around 72.
Wednesday
Mostly sunny, with a high near 88.
Wednesday Night
A chance of showers after 1am. Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 84.
Thursday Night
A chance of showers. Partly cloudy, with a low around 66.
Friday
Partly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lindenhurst IL
 42.42°N 88.02°W
Last Update:
4:41 am CDT Aug 29, 2026
Forecast Valid:
5am CDT Aug 29, 2026-6pm CDT Sep 4, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation