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

28°F

-2°C

Humidity 66%
Wind Speed SW 15 mph
Barometer 30.10 in (1020.7 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 12 Jan 4:51 am CST
Extended Forecast for

Old Mill Creek IL

  • Today

    Today: Sunny, with a high near 42. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 42 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 33. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 33 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A slight chance of sprinkles. Partly sunny, with a high near 47. West southwest wind around 15 mph, with gusts as high as 30 mph.

    High: 47 °F

    Slight Chance
    Sprinkles

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 30. West wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 30 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Snow showers likely, mainly before noon. Mostly cloudy, with a high near 32. Breezy, with a north wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 70%.

    High: 32 °F

    Breezy. Snow
    Showers
    Likely then
    Chance Snow
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow showers. Mostly cloudy, with a low around 14. Blustery.

    Low: 14 °F

    Slight Chance
    Snow Showers
    and Blustery

  • Thursday

    Thursday: A 20 percent chance of snow showers before noon. Mostly sunny, with a high near 25.

    High: 25 °F

    Slight Chance
    Snow Showers
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around 19.

    Low: 19 °F

    Chance Snow

  • Friday

    Friday: Scattered snow showers. Cloudy, with a high near 32.

    High: 32 °F

    Scattered
    Snow Showers

Detailed Forecast

Today
Sunny, with a high near 42. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Increasing clouds, with a low around 33. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
A slight chance of sprinkles. Partly sunny, with a high near 47. West southwest wind around 15 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly cloudy, with a low around 30. West wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Snow showers likely, mainly before noon. Mostly cloudy, with a high near 32. Breezy, with a north wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 70%.
Wednesday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 14. Blustery.
Thursday
A 20 percent chance of snow showers before noon. Mostly sunny, with a high near 25.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 19.
Friday
Scattered snow showers. Cloudy, with a high near 32.
Friday Night
Scattered snow showers. Mostly cloudy, with a low around 18.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 21.
Saturday Night
Mostly cloudy, with a low around 5.
Sunday
Partly sunny, with a high near 17.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Old Mill Creek IL
 42.41°N 87.99°W
Last Update:
2:31 am CST Jan 12, 2026
Forecast Valid:
5am CST Jan 12, 2026-6pm CST Jan 18, 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