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 69%
Wind Speed SW 16 G 28 mph
Barometer 30.09 in (1020.6 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 12 Jan 5:51 am CST
Extended Forecast for

4 Miles NNW 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 32. West southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 32 °F

    Increasing
    Clouds

  • Tuesday

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

    High: 47 °F

    Slight Chance
    Sprinkles

  • Tuesday Night

    Tuesday Night: A slight chance of rain and snow showers after 3am. Mostly cloudy, with a low around 30. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 30 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • 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 13. Blustery.

    Low: 13 °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. Mostly 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 32. West 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 wind around 15 mph, with gusts as high as 30 mph.
Tuesday Night
A slight chance of rain and snow showers after 3am. Mostly cloudy, with a low around 30. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
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 13. 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. Mostly cloudy, with a high near 32.
Friday Night
Scattered snow showers. Mostly cloudy, with a low around 17.
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:
4 Miles NNW Old Mill Creek IL
 42.48°N 88.01°W
Last Update:
2:31 am CST Jan 12, 2026
Forecast Valid:
6am CST Jan 12, 2026-6pm CST Jan 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation