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

58°F

14°C

Humidity 33%
Wind Speed W 7 mph
Barometer 29.86 in (1011.7 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 15 Feb 2:51 pm CST
Extended Forecast for

Libertyville IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 58. Northwest wind 5 to 10 mph.

    High: 58 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 36. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 36 °F

    Increasing
    Clouds

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 62. West southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 62 °F

    Partly Sunny

  • Monday Night

    Monday Night: Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 37. West southwest wind around 5 mph becoming east southeast after midnight.

    Low: 37 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 48. East southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 48 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: Showers likely, with thunderstorms also possible after 3am. Mostly cloudy, with a low around 46. Chance of precipitation is 70%.

    Low: 46 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of showers before noon. Mostly sunny, with a high near 62. Breezy.

    High: 62 °F

    Chance
    Showers then
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 58. Northwest wind 5 to 10 mph.
Tonight
Increasing clouds, with a low around 36. Calm wind becoming south southwest around 5 mph after midnight.
Washington's Birthday
Partly sunny, with a high near 62. West southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Monday Night
Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 37. West southwest wind around 5 mph becoming east southeast after midnight.
Tuesday
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 48. East southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Showers likely, with thunderstorms also possible after 3am. Mostly cloudy, with a low around 46. Chance of precipitation is 70%.
Wednesday
A 30 percent chance of showers before noon. Mostly sunny, with a high near 62. Breezy.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
Partly sunny, with a high near 52.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 33.
Friday
Mostly sunny, with a high near 42.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Mostly sunny, with a high near 38.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Libertyville IL
 42.28°N 87.94°W
Last Update:
3:11 pm CST Feb 15, 2026
Forecast Valid:
3pm CST Feb 15, 2026-6pm CST Feb 21, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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