Severe Thunderstorms in the Ohio and Tennessee Valleys; Flash Flooding Possible in the Southwest

Scattered damaging winds, isolated severe hail, and a brief tornado or two are possible from the Upper Ohio to Tennessee Valleys during the late afternoon and evening. Across the Southwest, monsoonal moisture will continue to bring heavy rain and a threat for isolated to scattered flash flooding through Saturday. Read More >

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Mostly Cloudy

66°F

19°C

Humidity 37%
Wind Speed NW 12 mph
Barometer 30.04 in (1017.1 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 6 Sep 4:52 pm CDT
Extended Forecast for

Lake Forest IL

  • Tonight

    Tonight: A slight chance of showers between 7pm and 11pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 46. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.  Chance of precipitation is 20%.

    Low: 46 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 66. West northwest wind 5 to 10 mph.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 49. North wind around 5 mph becoming calm  in the evening.

    Low: 49 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 71. South wind 5 to 10 mph.

    High: 71 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56. South southeast wind 5 to 10 mph.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 75.

    High: 75 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers.  Mostly cloudy, with a low around 61.

    Low: 61 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers between 7pm and 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 46. West northwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 66. West northwest wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 49. North wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 71. South wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 56. South southeast wind 5 to 10 mph.
Tuesday
Partly sunny, with a high near 75.
Tuesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 61.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Sunny, with a high near 72.
Thursday Night
Mostly clear, with a low around 60.
Friday
Mostly sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Lake Forest IL
 42.26°N 87.85°W
4:12 pm CDT Sep 6, 2025
5pm CDT Sep 6, 2025-6pm CDT Sep 13, 2025
 
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Additional Resources

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