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.

Fair

5°F

-15°C

Humidity 69%
Wind Speed W 6 mph
Barometer 30.44 in (1033.5 mb)
Dewpoint -3°F (-19°C)
Visibility 10.00 mi
Wind Chill-6°F (-21°C)
Last update 15 Jan 5:51 am CST
Extended Forecast for

McHenry IL

  • Today

    Today: Increasing clouds, with a high near 21. Wind chill values as low as -12. West southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 21 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Scattered snow showers, mainly between 9pm and 3am. Mostly cloudy, with a temperature rising to around 22 by 4am. Southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

    Low: 17 °F⇑

    Scattered
    Snow Showers

  • Thursday

    Thursday: Isolated flurries before 9am. Mostly cloudy, with a high near 35. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 35 °F

    Isolated
    Flurries

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 21. West northwest wind 5 to 10 mph becoming south southwest after midnight. Winds could gust as high as 15 mph.

    Low: 21 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 40. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 40 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: A slight chance of rain before midnight, then a slight chance of rain and snow between midnight and 3am, then a slight chance of snow after 3am. Mostly cloudy, with a low around 23. Chance of precipitation is 20%.

    Low: 23 °F

    Slight Chance
    Rain then
    Slight Chance
    Rain/Snow

  • Saturday

    Saturday: Partly sunny, with a high near 27.

    High: 27 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 5.

    Low: 5 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny and cold, with a high near 9.

    High: 9 °F

    Cold

Detailed Forecast

Today
Increasing clouds, with a high near 21. Wind chill values as low as -12. West southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Tonight
Scattered snow showers, mainly between 9pm and 3am. Mostly cloudy, with a temperature rising to around 22 by 4am. Southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Thursday
Isolated flurries before 9am. Mostly cloudy, with a high near 35. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Mostly cloudy, with a low around 21. West northwest wind 5 to 10 mph becoming south southwest after midnight. Winds could gust as high as 15 mph.
Friday
Mostly sunny, with a high near 40. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Friday Night
A slight chance of rain before midnight, then a slight chance of rain and snow between midnight and 3am, then a slight chance of snow after 3am. Mostly cloudy, with a low around 23. Chance of precipitation is 20%.
Saturday
Partly sunny, with a high near 27.
Saturday Night
Mostly cloudy, with a low around 5.
Sunday
Partly sunny and cold, with a high near 9.
Sunday Night
Mostly clear, with a low around -7.
M.L.King Day
Mostly sunny and cold, with a high near 4.
Monday Night
Mostly clear, with a low around -8.
Tuesday
Sunny and cold, with a high near 9.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
McHenry IL
 42.34°N 88.26°W
Last Update:
4:27 am CST Jan 15, 2025
Forecast Valid:
6am CST Jan 15, 2025-6pm CST Jan 21, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation