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Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair and Breezy

53°F

12°C

Humidity 57%
Wind Speed N 21 G 33 mph
Barometer 29.77 in (1008.0 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 26 Mar 11:51 am CDT
Extended Forecast for

McHenry IL

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms before 4pm, then showers likely between 4pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a temperature falling to around 46 by 5pm. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 65 °F⇓

    Showers
    Likely and
    Breezy

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 9pm. Mostly cloudy, with a low around 28. Blustery, with a north northeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 28 °F

    Blustery.
    Showers
    Likely then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 41. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 41 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 23. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 23 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 48. Light and variable wind becoming south southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

    High: 48 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms before 4pm, then showers likely between 4pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a temperature falling to around 46 by 5pm. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 9pm. Mostly cloudy, with a low around 28. Blustery, with a north northeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Partly sunny, with a high near 41. North wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 23. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday
Sunny, with a high near 48. Light and variable wind becoming south southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 36.
Sunday
Mostly sunny, with a high near 60.
Sunday Night
Partly cloudy, with a low around 46.
Monday
Mostly sunny, with a high near 69.
Monday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 44.
Tuesday
A chance of showers. Mostly cloudy, with a high near 62.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 49.
Wednesday
A chance of showers. Mostly cloudy, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
McHenry IL
 42.34°N 88.26°W
Last Update:
12:06 pm CDT Mar 26, 2026
Forecast Valid:
12pm CDT Mar 26, 2026-6pm CDT Apr 1, 2026
 
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Additional Resources

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Chance of Precipitation