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

68°F

20°C

Humidity 96%
Wind Speed N 9 mph
Barometer 29.83 in (1009.3 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 1 Aug 10:51 pm CDT
Extended Forecast for

Mc Henry IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 65. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 65 °F

    Mostly Cloudy

  • Sunday

    Sunday: Cloudy through mid morning, then gradual clearing, with a high near 75. North northeast wind around 15 mph, with gusts as high as 20 mph.

    High: 75 °F

    Gradual
    Clearing

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 59. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 59 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 78. East northeast wind around 5 mph, with gusts as high as 10 mph.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58. East northeast wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 63.

    Low: 63 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, mainly after 1pm. Partly sunny, with a high near 79.

    High: 79 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers before 1am. Mostly cloudy, with a low around 59.

    Low: 59 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 65. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday
Cloudy through mid morning, then gradual clearing, with a high near 75. North northeast wind around 15 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 59. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
Sunny, with a high near 78. East northeast wind around 5 mph, with gusts as high as 10 mph.
Monday Night
Mostly clear, with a low around 58. East northeast wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 82.
Tuesday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 63.
Wednesday
Showers likely, mainly after 1pm. Partly sunny, with a high near 79.
Wednesday Night
A chance of showers before 1am. Mostly cloudy, with a low around 59.
Thursday
A chance of showers after 1pm. Partly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 62.
Friday
Partly sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 65.
Saturday
Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mc Henry IL
 42.34°N 88.29°W
Last Update:
10:00 pm CDT Aug 1, 2026
Forecast Valid:
11pm CDT Aug 1, 2026-6pm CDT Aug 8, 2026
 
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