Thunderstorms and Heavy Rains in the Appalachians

Multiple rounds of moderate to locally heavy rain will impact portions of the Appalachians and Mid-Atlantic, which may lead to flash flooding concerns. Thunderstorms with isolated severe wind gusts will be possible this afternoon from parts of the Southeast into the southern and central Appalachians. A multi-day heavy rain will pose a flash flood threat in New Mexico beginning Tuesday. Read More >

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Mostly Cloudy

61°F

16°C

Humidity 75%
Wind Speed NE 16 G 26 mph
Barometer 30.15 in (1020.6 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 21 Sep 4:51 pm CDT
Extended Forecast for

Third Lake IL

  • Tonight

    Tonight: Cloudy, with a low around 55. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 55 °F

    Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 61. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 61 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 52. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 64. East northeast wind 10 to 15 mph.

    High: 64 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 52. East wind 5 to 10 mph.

    Low: 52 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 55. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 61. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 52. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
Mostly cloudy, with a high near 64. East northeast wind 10 to 15 mph.
Wednesday Night
Mostly cloudy, with a low around 52. East wind 5 to 10 mph.
Thursday
Partly sunny, with a high near 64.
Thursday Night
Mostly cloudy, with a low around 51.
Friday
Mostly sunny, with a high near 65.
Friday Night
Mostly cloudy, with a low around 50.
Saturday
Partly sunny, with a high near 64.
Saturday Night
Mostly cloudy, with a low around 51.
Sunday
Partly sunny, with a high near 68.
Sunday Night
Mostly cloudy, with a low around 53.
Monday
Partly sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
Third Lake IL
 42.37°N 88.02°W
1:55 pm CDT Sep 21, 2026
5pm CDT Sep 21, 2026-6pm CDT Sep 28, 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