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.

Fog/Mist

60°F

16°C

Humidity 100%
Wind Speed SW 6 mph
Barometer 29.90 in (1012.0 mb)
Dewpoint 60°F (16°C)
Visibility 4.00 mi
Last update 24 Jun 10:51 pm CDT
Extended Forecast for

Old Mill Creek IL

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 59. South southwest wind around 5 mph.

    Low: 59 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 76. West northwest wind 5 to 10 mph.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 54. North wind around 5 mph becoming calm.

    Low: 54 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 70. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 70 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 56. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 56 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 86.

    High: 86 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 59. South southwest wind around 5 mph.
Thursday
Mostly sunny, with a high near 76. West northwest wind 5 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 54. North wind around 5 mph becoming calm.
Friday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 70. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Friday Night
Mostly cloudy, with a low around 56. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday
Mostly sunny, with a high near 75.
Saturday Night
A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 62.
Sunday
Partly sunny, with a high near 86.
Sunday Night
Partly cloudy, with a low around 72.
Monday
Sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 74.
Tuesday
Sunny, with a high near 94.
Tuesday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 72.
Wednesday
Mostly sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Old Mill Creek IL
 42.44°N 87.99°W
Last Update:
9:16 pm CDT Jun 24, 2026
Forecast Valid:
10pm CDT Jun 24, 2026-6pm CDT Jul 1, 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