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

60°F

16°C

Humidity 78%
Wind Speed NE 7 mph
Barometer 30.07 in (1018.1 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 14 Jun 8:51 am CDT
Extended Forecast for

Old Mill Creek IL

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 71. East northeast wind around 10 mph.

    High: 71 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 55. North northeast wind 5 to 10 mph.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 77. East wind 5 to 10 mph.

    High: 77 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 60. East wind around 5 mph, with gusts as high as 10 mph.

    Low: 60 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 80. South wind 5 to 10 mph. Chance of precipitation is 30%.

    High: 80 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 7am. Partly sunny, with a high near 87. Chance of precipitation is 40%.

    High: 87 °F

    Chance
    T-storms

  • 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 66.

    Low: 66 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and thunderstorms. Mostly cloudy, with a high near 83.

    High: 83 °F

    T-storms

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 71. East northeast wind around 10 mph.
Tonight
Mostly clear, with a low around 55. North northeast wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 77. East wind 5 to 10 mph.
Sunday Night
Mostly cloudy, with a low around 60. East wind around 5 mph, with gusts as high as 10 mph.
Monday
A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 80. South wind 5 to 10 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 7am. Partly sunny, with a high near 87. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 66.
Wednesday
Showers and thunderstorms. Mostly cloudy, with a high near 83.
Wednesday Night
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 64.
Juneteenth
Mostly sunny, with a high near 81.
Thursday Night
Partly cloudy, with a low around 61.
Friday
Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Old Mill Creek IL
 42.44°N 87.99°W
Last Update:
8:56 am CDT Jun 14, 2025
Forecast Valid:
9am CDT Jun 14, 2025-6pm CDT Jun 20, 2025
 
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