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.

Overcast

60°F

16°C

Humidity 90%
Wind Speed W 14 G 24 mph
Barometer 29.68 in (1004.7 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 7 Mar 5:51 am CST
Extended Forecast for

Old Mill Creek IL

  • Today

    Today: Showers likely, mainly before noon. Cloudy, with a temperature falling to around 43 by 5pm. South southwest wind around 15 mph becoming west northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 60 °F⇓

    Showers
    Likely then
    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 34. West southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 60. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 60 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 46. Southwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 46 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 68. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 68 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Showers likely after noon. Mostly sunny, with a high near 55. Chance of precipitation is 60%.

    High: 55 °F

    Sunny then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers. Cloudy, with a low around 35.

    Low: 35 °F

    Showers

  • Wednesday

    Wednesday: A chance of rain and snow showers. Cloudy, with a high near 43.

    High: 43 °F

    Chance
    Rain/Snow

Detailed Forecast

Today
Showers likely, mainly before noon. Cloudy, with a temperature falling to around 43 by 5pm. South southwest wind around 15 mph becoming west northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 34. West southwest wind around 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 60. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 46. Southwest wind around 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 68. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Showers likely after noon. Mostly sunny, with a high near 55. Chance of precipitation is 60%.
Tuesday Night
Showers. Cloudy, with a low around 35.
Wednesday
A chance of rain and snow showers. Cloudy, with a high near 43.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
Mostly sunny, with a high near 44.
Thursday Night
A chance of rain and snow showers. Cloudy, with a low around 33.
Friday
Mostly cloudy, with a high near 52.
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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:
3:25 am CST Mar 7, 2026
Forecast Valid:
6am CST Mar 7, 2026-6pm CDT Mar 13, 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