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

24°F

-4°C

Humidity 84%
Wind Speed SW 17 G 29 mph
Barometer 29.88 in (1013.8 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 3 Dec 3:51 am CST
Extended Forecast for

Mc Henry IL

  • Today

    Today: A chance of snow between 9am and 3pm. Patchy blowing snow before 9am. Cloudy, with a high near 30. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 40%.

    High: 30 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around -2. Wind chill values as low as -15. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: -2 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 13. Wind chill values as low as -15. Northwest wind around 5 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 13 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -4. Wind chill values as low as -14. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: -4 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 23. Southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 23 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 14.

    Low: 14 °F

    Chance Snow
    then Mostly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 26.

    High: 26 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of snow after midnight. Mostly cloudy, with a low around 12.

    Low: 12 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: A chance of snow. Mostly cloudy, with a high near 27.

    High: 27 °F

    Chance Snow

Detailed Forecast

Today
A chance of snow between 9am and 3pm. Patchy blowing snow before 9am. Cloudy, with a high near 30. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around -2. Wind chill values as low as -15. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 13. Wind chill values as low as -15. Northwest wind around 5 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Partly cloudy, with a low around -4. Wind chill values as low as -14. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Partly sunny, with a high near 23. Southwest wind around 10 mph, with gusts as high as 20 mph.
Friday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 14.
Saturday
Partly sunny, with a high near 26.
Saturday Night
A chance of snow after midnight. Mostly cloudy, with a low around 12.
Sunday
A chance of snow. Mostly cloudy, with a high near 27.
Sunday Night
A chance of snow before midnight. Mostly cloudy, with a low around 11.
Monday
Partly sunny, with a high near 24.
Monday Night
A chance of snow. Mostly cloudy, with a low around 16.
Tuesday
A chance of snow. Mostly cloudy, with a high near 30.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mc Henry IL
 42.34°N 88.29°W
Last Update:
3:11 am CST Dec 3, 2025
Forecast Valid:
4am CST Dec 3, 2025-6pm CST Dec 9, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation