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 and Breezy

36°F

2°C

Humidity 86%
Wind Speed NE 21 G 31 mph
Barometer 29.77 in (1008.4 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 22 Mar 9:51 am CDT
Extended Forecast for

Third Lake IL

  • Today

    Today: A 20 percent chance of showers after noon. Mostly cloudy, with a temperature falling to around 36 by 5pm. Breezy, with a north northeast wind around 20 mph, with gusts as high as 30 mph.

    High: 42 °F⇓

    Breezy.
    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 26. North wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 26 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 43. North wind around 5 mph, with gusts as high as 10 mph.

    High: 43 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 29. East wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 54. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 54 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

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

    High: 54 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers. Mostly cloudy, with a high near 63.

    High: 63 °F

    Chance
    Showers

Detailed Forecast

Today
A 20 percent chance of showers after noon. Mostly cloudy, with a temperature falling to around 36 by 5pm. Breezy, with a north northeast wind around 20 mph, with gusts as high as 30 mph.
Tonight
Mostly cloudy, with a low around 26. North wind 10 to 15 mph, with gusts as high as 30 mph.
Monday
Mostly sunny, with a high near 43. North wind around 5 mph, with gusts as high as 10 mph.
Monday Night
Mostly cloudy, with a low around 29. East wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.
Tuesday
Mostly cloudy, with a high near 54. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 54.
Wednesday Night
Mostly cloudy, with a low around 43.
Thursday
A chance of showers. Mostly cloudy, with a high near 63.
Thursday Night
Mostly cloudy, with a low around 30.
Friday
Partly sunny, with a high near 41.
Friday Night
Mostly clear, with a low around 27.
Saturday
Sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Third Lake IL
 42.37°N 87.99°W
Last Update:
8:51 am CDT Mar 22, 2026
Forecast Valid:
10am CDT Mar 22, 2026-6pm CDT Mar 28, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation