National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

60°F

16°C

Humidity 56%
Wind Speed W 13 G 18 mph
Barometer 29.76 in (1008.1 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 20 Mar 10:51 am CDT
Extended Forecast for

Mc Henry IL

  • Today

    Today: Partly sunny, with a temperature falling to around 55 by 5pm. North northwest wind around 10 mph, with gusts as high as 20 mph.

    High: 64 °F⇓

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 36. North northeast wind 5 to 10 mph becoming east southeast after midnight.

    Low: 36 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 69. East southeast wind 5 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 25 mph.

    High: 69 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 47. Southwest wind around 10 mph, with gusts as high as 15 mph.

    Low: 47 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of rain after 1pm. Cloudy, with a high near 49. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 49 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 54.

    High: 54 °F

    Mostly Cloudy

Detailed Forecast

Today
Partly sunny, with a temperature falling to around 55 by 5pm. North northwest wind around 10 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 36. North northeast wind 5 to 10 mph becoming east southeast after midnight.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 69. East southeast wind 5 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 47. Southwest wind around 10 mph, with gusts as high as 15 mph.
Sunday
A 20 percent chance of rain after 1pm. Cloudy, with a high near 49. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 28.
Monday
Mostly sunny, with a high near 46.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
Mostly cloudy, with a high near 54.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Partly sunny, with a high near 51.
Wednesday Night
Partly cloudy, with a low around 40.
Thursday
Mostly sunny, with a high near 59.
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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:
11:16 am CDT Mar 20, 2026
Forecast Valid:
11am CDT Mar 20, 2026-6pm CDT Mar 26, 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