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

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Overcast

76°F

24°C

Humidity 94%
Wind Speed W 6 mph
Barometer 29.95 in (1013.1 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 16 Aug 9:51 am CDT
Extended Forecast for

Third Lake IL

  • Today

    Today: Scattered showers and thunderstorms, mainly between 2pm and 4pm. Partly sunny, with a high near 83. West northwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 83 °F

    Mostly Cloudy
    then
    Scattered
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 66. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 66 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 80. North northeast wind 5 to 10 mph becoming northwest in the afternoon.

    High: 80 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 62. West wind around 5 mph becoming south southwest in the evening.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. West southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 82 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 76.

    High: 76 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

Today
Scattered showers and thunderstorms, mainly between 2pm and 4pm. Partly sunny, with a high near 83. West northwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Tonight
Partly cloudy, with a low around 66. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
Mostly sunny, with a high near 80. North northeast wind 5 to 10 mph becoming northwest in the afternoon.
Monday Night
Mostly clear, with a low around 62. West wind around 5 mph becoming south southwest in the evening.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. West southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Third Lake IL
 42.37°N 87.99°W
Last Update:
10:36 am CDT Aug 16, 2026
Forecast Valid:
10am CDT Aug 16, 2026-6pm CDT Aug 22, 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