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.

Mostly Cloudy

27°C

81°F

Humidity 69%
Wind Speed NW 13 km/h
Barometer 1009.5 mb (29.84 in)
Dewpoint 21°C (70°F)
Visibility 16 km
Heat Index29°C (84°F)
Last update 12 Sep 5:51 pm CDT
Extended Forecast for

Libertyville IL

  • Tonight

    Tonight: A chance of sprinkles before 8pm. Partly cloudy, with a low around 14. North northwest wind 10 to 15 km/h.

    Low: 14 °C

    Chance
    Sprinkles

  • Sunday

    Sunday: A chance of showers between 1pm and 4pm. Partly sunny, with a high near 22. North northwest wind 10 to 15 km/h, with gusts as high as 25 km/h. Chance of precipitation is 40%.

    High: 22 °C

    Partly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming clear, with a low around 9. Northwest wind 5 to 10 km/h.

    Low: 9 °C

    Decreasing
    Clouds

  • Monday

    Monday: Increasing clouds, with a high near 22. North northeast wind 5 to 10 km/h becoming southeast 15 to 25 km/h in the morning. Winds could gust as high as 35 km/h.

    High: 22 °C

    Increasing
    Clouds

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 17. South southeast wind 25 to 30 km/h, with gusts as high as 45 km/h.

    Low: 17 °C

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 28. Chance of precipitation is 70%.

    High: 28 °C

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 17. Chance of precipitation is 70%.

    Low: 17 °C

    Showers
    Likely

  • Wednesday

    Wednesday: Showers, mainly before 1pm. Cloudy, with a high near 22.

    High: 22 °C

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely. Cloudy, with a low around 17.

    Low: 17 °C

    Showers
    Likely

Detailed Forecast

Tonight
A chance of sprinkles before 8pm. Partly cloudy, with a low around 14. North northwest wind 10 to 15 km/h.
Sunday
A chance of showers between 1pm and 4pm. Partly sunny, with a high near 22. North northwest wind 10 to 15 km/h, with gusts as high as 25 km/h. Chance of precipitation is 40%.
Sunday Night
Mostly cloudy, then gradually becoming clear, with a low around 9. Northwest wind 5 to 10 km/h.
Monday
Increasing clouds, with a high near 22. North northeast wind 5 to 10 km/h becoming southeast 15 to 25 km/h in the morning. Winds could gust as high as 35 km/h.
Monday Night
A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 17. South southeast wind 25 to 30 km/h, with gusts as high as 45 km/h.
Tuesday
Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 28. Chance of precipitation is 70%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 17. Chance of precipitation is 70%.
Wednesday
Showers, mainly before 1pm. Cloudy, with a high near 22.
Wednesday Night
Showers likely. Cloudy, with a low around 17.
Thursday
Showers likely before 1pm. Mostly cloudy, with a high near 23.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 15.
Friday
A chance of showers. Partly sunny, with a high near 23.
Friday Night
A chance of showers. Mostly cloudy, with a low around 14.
Saturday
A chance of showers. Partly sunny, with a high near 23.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Libertyville IL
 42.28°N 87.94°W
Last Update:
3:21 pm CDT Sep 12, 2026
Forecast Valid:
6pm CDT Sep 12, 2026-6pm CDT Sep 19, 2026
 
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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