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

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Overcast

16°F

-9°C

Humidity 71%
Wind Speed NW 7 mph
Barometer 30.34 in (1029.6 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill6°F (-14°C)
Last update 4 Feb 3:51 am CST
Extended Forecast for

Third Lake IL

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 26. North northwest wind around 5 mph.

    High: 26 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Increasing clouds, with a low around 12. Calm wind becoming west southwest around 5 mph after midnight. Winds could gust as high as 10 mph.

    Low: 12 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Scattered snow showers between 9am and 3pm. Cloudy, with a high near 31. Southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    High: 31 °F

    Scattered
    Snow Showers

  • Thursday Night

    Thursday Night: Scattered snow showers after midnight, mixing with freezing rain after 3am. Mostly cloudy, with a low around 26. West southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    Low: 26 °F

    Mostly Cloudy
    then
    Scattered
    Wintry Mix

  • Friday

    Friday: A slight chance of rain and snow showers before noon. Mostly cloudy, with a high near 39. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 39 °F

    Breezy.
    Isolated
    Rain/Snow
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 11.

    Low: 11 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 33.

    High: 33 °F

    Partly Sunny

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 26. North northwest wind around 5 mph.
Tonight
Increasing clouds, with a low around 12. Calm wind becoming west southwest around 5 mph after midnight. Winds could gust as high as 10 mph.
Thursday
Scattered snow showers between 9am and 3pm. Cloudy, with a high near 31. Southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Thursday Night
Scattered snow showers after midnight, mixing with freezing rain after 3am. Mostly cloudy, with a low around 26. West southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Friday
A slight chance of rain and snow showers before noon. Mostly cloudy, with a high near 39. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 11.
Saturday
Mostly sunny, with a high near 27.
Saturday Night
Mostly cloudy, with a low around 20.
Sunday
Partly sunny, with a high near 33.
Sunday Night
Partly cloudy, with a low around 20.
Monday
Mostly sunny, with a high near 38.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Partly sunny, with a high near 41.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Third Lake IL
 42.37°N 87.99°W
Last Update:
2:46 am CST Feb 4, 2026
Forecast Valid:
4am CST Feb 4, 2026-6pm CST Feb 10, 2026
 
Forecast Discussion
 
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Additional Resources

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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