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

33°F

1°C

Humidity 85%
Wind Speed SE 7 mph
Barometer 30.15 in (1022.3 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 3 Mar 6:51 am CST
Extended Forecast for

Third Lake IL

  • Today

    Today: Isolated sprinkles before 9am. Mostly cloudy, with a high near 40. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 40 °F

    Isolated
    Sprinkles

  • Tonight

    Tonight: Partly cloudy, with a low around 30. East wind around 5 mph becoming calm in the evening.

    Low: 30 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers after 3pm. Partly sunny, with a high near 41. East wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 41 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 3am. Mostly cloudy, with a low around 38. Northeast wind around 5 mph. Chance of precipitation is 60%.

    Low: 38 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: Showers likely, mainly before 3pm. Cloudy, with a high near 44. Northeast wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 44 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 39.

    Low: 39 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Showers. High near 61. Chance of precipitation is 80%.

    High: 61 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Showers

  • Saturday

    Saturday: A chance of showers before noon. Mostly cloudy, with a high near 62.

    High: 62 °F

    Chance
    Showers then
    Partly Sunny

Detailed Forecast

Today
Isolated sprinkles before 9am. Mostly cloudy, with a high near 40. Calm wind becoming northeast around 5 mph in the afternoon.
Tonight
Partly cloudy, with a low around 30. East wind around 5 mph becoming calm in the evening.
Wednesday
A 20 percent chance of showers after 3pm. Partly sunny, with a high near 41. East wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Showers likely, mainly after 3am. Mostly cloudy, with a low around 38. Northeast wind around 5 mph. Chance of precipitation is 60%.
Thursday
Showers likely, mainly before 3pm. Cloudy, with a high near 44. Northeast wind 5 to 10 mph. Chance of precipitation is 70%.
Thursday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 39.
Friday
Showers. High near 61. Chance of precipitation is 80%.
Friday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 52.
Saturday
A chance of showers before noon. Mostly cloudy, with a high near 62.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Sunny, with a high near 60.
Sunday Night
Partly cloudy, with a low around 42.
Monday
Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Third Lake IL
 42.37°N 87.99°W
Last Update:
6:17 am CST Mar 3, 2026
Forecast Valid:
7am CST Mar 3, 2026-6pm CDT Mar 9, 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