Heat and Fire Weather Concerns West; Heavy Rain and Thunderstorms from Plains to mid-Atlantic

Thunderstorms and locally heavy rainfall is expected from the Central Plains to the Ohio Valley, mid-Atlantic and across the Southeast. Severe weather from the Upper Midwest to Central Plains increases on Friday. Major to Extreme HeatRisk continues across the Southern Plains to the lower Mississippi Valley late this week. Fire weather concerns for the northern Rockies and northern Plains today. Read More >

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

71°F

22°C

Humidity 63%
Wind Speed Calm
Barometer 30.06 in (1017.0 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 10 Sep 11:51 am CDT
Extended Forecast for

Waukegan IL

  • This Afternoon

    This Afternoon: Mostly cloudy, then gradually becoming sunny, with a temperature falling to around 73 by 5pm. East northeast wind around 5 mph.

    High: 76 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 60. East wind around 5 mph becoming calm  in the evening.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 76. Light and variable wind becoming east southeast 5 to 10 mph in the morning.

    High: 76 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62. Southeast wind 5 to 10 mph becoming south southwest after midnight.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 82. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 82 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 74.

    High: 74 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 64.

    Low: 64 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers and thunderstorms.  Mostly cloudy, with a high near 83.

    High: 83 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly cloudy, then gradually becoming sunny, with a temperature falling to around 73 by 5pm. East northeast wind around 5 mph.
Tonight
Mostly clear, with a low around 60. East wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 76. Light and variable wind becoming east southeast 5 to 10 mph in the morning.
Friday Night
Partly cloudy, with a low around 62. Southeast wind 5 to 10 mph becoming south southwest after midnight.
Saturday
Mostly sunny, with a high near 82. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday Night
Partly cloudy, with a low around 60.
Sunday
Partly sunny, with a high near 74.
Sunday Night
Mostly cloudy, with a low around 64.
Monday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 83.
Monday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 64.
Tuesday
A chance of showers. Mostly cloudy, with a high near 74.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 60.
Wednesday
Partly sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
Waukegan IL
 42.37°N 87.85°W
9:11 am CDT Sep 10, 2026
12pm CDT Sep 10, 2026-6pm CDT Sep 16, 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