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

54°F

12°C

Humidity 80%
Wind Speed E 6 mph
Barometer 30.35 in (1027.8 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 31 Oct 1:51 am CDT
Extended Forecast for

Third Lake IL

  • Overnight

    Overnight: Isolated showers. Cloudy, with a low around 50. East wind around 10 mph. Chance of precipitation is 20%.

    Low: 50 °F

    Isolated
    Showers

  • Saturday

    Saturday: Scattered showers, mainly between 8am and 3pm. Cloudy, with a high near 61. Southeast wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.

    High: 61 °F

    Scattered
    Showers

  • Saturday Night

    Saturday Night: Isolated showers before midnight. Cloudy, with a low around 50. East southeast wind around 5 mph becoming calm after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 20%.

    Low: 50 °F

    Isolated
    Showers then
    Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 66. Southeast wind around 5 mph, with gusts as high as 10 mph.

    High: 66 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 52. South southeast wind 5 to 10 mph.

    Low: 52 °F

    Mostly Cloudy

  • Monday

    Monday: A 40 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 66.

    High: 66 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, mainly after 1am. Cloudy, with a low around 58. Chance of precipitation is 60%.

    Low: 58 °F

    Chance
    Showers then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers. Mostly cloudy, with a high near 70.

    High: 70 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Showers
    Likely

Detailed Forecast

Overnight
Isolated showers. Cloudy, with a low around 50. East wind around 10 mph. Chance of precipitation is 20%.
Saturday
Scattered showers, mainly between 8am and 3pm. Cloudy, with a high near 61. Southeast wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.
Saturday Night
Isolated showers before midnight. Cloudy, with a low around 50. East southeast wind around 5 mph becoming calm after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 20%.
Sunday
Mostly cloudy, with a high near 66. Southeast wind around 5 mph, with gusts as high as 10 mph.
Sunday Night
Mostly cloudy, with a low around 52. South southeast wind 5 to 10 mph.
Monday
A 40 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 66.
Monday Night
Showers likely, mainly after 1am. Cloudy, with a low around 58. Chance of precipitation is 60%.
Tuesday
Showers. Mostly cloudy, with a high near 70.
Tuesday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 52.
Wednesday
A chance of showers. Mostly cloudy, with a high near 65.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 47.
Thursday
A chance of showers. Partly sunny, with a high near 64.
Thursday Night
Mostly cloudy, with a low around 46.
Friday
A chance of showers. Partly sunny, with a high near 61.
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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:
2:01 am CDT Oct 31, 2026
Forecast Valid:
2am CDT Oct 31, 2026-6pm CST Nov 6, 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