Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

45°F

7°C

Humidity 66%
Wind Speed NE 7 mph
Barometer 30.11 in (1020.4 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 19 Mar 12:51 pm CDT
Extended Forecast for

Third Lake IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 49. East wind around 5 mph.

    High: 49 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 36. East southeast wind 5 to 10 mph becoming west southwest after midnight. Winds could gust as high as 15 mph.

    Low: 36 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 59. West southwest wind around 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 59 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 37. North wind around 5 mph.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 62. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 62 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers before 1pm.  Mostly cloudy, with a high near 54.

    High: 54 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 49. East wind around 5 mph.
Tonight
Mostly cloudy, with a low around 36. East southeast wind 5 to 10 mph becoming west southwest after midnight. Winds could gust as high as 15 mph.
Friday
Mostly cloudy, with a high near 59. West southwest wind around 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 37. North wind around 5 mph.
Saturday
Mostly sunny, with a high near 62. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 54.
Sunday Night
Mostly cloudy, with a low around 28.
Monday
Mostly sunny, with a high near 41.
Monday Night
Mostly cloudy, with a low around 29.
Tuesday
Mostly cloudy, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Mostly cloudy, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
Third Lake IL
 42.37°N 87.99°W
8:56 am CDT Mar 19, 2026
1pm CDT Mar 19, 2026-6pm CDT Mar 25, 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