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.

Fair

44°F

7°C

Humidity 55%
Wind Speed SW 7 mph
Barometer 30.13 in (1020.9 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 5 Apr 9:51 pm CDT
Extended Forecast for

Third Lake IL

  • Tonight

    Tonight: Showers, mainly before 2am. Low around 36. West southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Showers

  • Monday

    Monday: Partly sunny, with a high near 47. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 47 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 24. North wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 24 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 38. North northeast wind around 5 mph becoming east in the afternoon. Winds could gust as high as 10 mph.

    High: 38 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of rain and snow showers between 1am and 4am, then a slight chance of rain showers after 4am. Mostly cloudy, with a low around 29. East southeast wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 62. Breezy.

    High: 62 °F

    Mostly Cloudy
    and Breezy

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers. Partly sunny, with a high near 66.

    High: 66 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance
    Showers

Detailed Forecast

Tonight
Showers, mainly before 2am. Low around 36. West southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Partly sunny, with a high near 47. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Monday Night
Partly cloudy, with a low around 24. North wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 38. North northeast wind around 5 mph becoming east in the afternoon. Winds could gust as high as 10 mph.
Tuesday Night
A slight chance of rain and snow showers between 1am and 4am, then a slight chance of rain showers after 4am. Mostly cloudy, with a low around 29. East southeast wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a high near 62. Breezy.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 52.
Thursday
A chance of showers. Partly sunny, with a high near 66.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 42.
Friday
A chance of showers. Partly sunny, with a high near 56.
Friday Night
A chance of showers. Mostly cloudy, with a low around 40.
Saturday
A chance of showers. Partly sunny, with a high near 59.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 48.
Sunday
A chance of showers. Mostly cloudy, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Third Lake IL
 42.35°N 87.99°W
Last Update:
9:41 pm CDT Apr 5, 2026
Forecast Valid:
10pm CDT Apr 5, 2026-6pm CDT Apr 12, 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