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Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

68°F

20°C

Humidity 84%
Wind Speed NW 6 mph
Barometer 29.86 in (1010.3 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 19 Jun 7:51 am CDT
Extended Forecast for

McHenry IL

  • Juneteenth

    Juneteenth: Isolated showers and thunderstorms after 4pm. Mostly sunny, with a high near 83. West northwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.

    High: 83 °F

    Mostly Sunny
    then Isolated
    T-storms

  • Tonight

    Tonight: Isolated showers and thunderstorms before 7pm. Mostly clear, with a low around 63. Southwest wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 10%.

    Low: 63 °F

    Isolated
    T-storms then
    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 83. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 83 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 73. South southwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 94. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 94 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Clear, with a low around 76.

    Low: 76 °F

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 96.

    High: 96 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 95.

    High: 95 °F

    Hot

Detailed Forecast

Juneteenth
Isolated showers and thunderstorms after 4pm. Mostly sunny, with a high near 83. West northwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.
Tonight
Isolated showers and thunderstorms before 7pm. Mostly clear, with a low around 63. Southwest wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 10%.
Friday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 83. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 73. South southwest wind around 15 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 94. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Clear, with a low around 76.
Sunday
Sunny and hot, with a high near 96.
Sunday Night
Mostly clear, with a low around 76.
Monday
Sunny and hot, with a high near 95.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Wednesday
Showers likely. Partly sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
McHenry IL
 42.32°N 88.26°W
Last Update:
4:56 am CDT Jun 19, 2025
Forecast Valid:
8am CDT Jun 19, 2025-6pm CDT Jun 25, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation