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

Three Weather Areas of Concern Today

Potential Tropical Cyclone Three will gradually approach the northern Gulf Coast with heavy rain and potential flooding. Meanwhile, a sharp cold front will produce severe thunderstorms with significant winds, hail, tornadoes and possible flooding across the Ohio Valley. Finally, a large dome of high pressure will continue the major heat wave over the West, extending into the central Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

88°F

31°C

Humidity 35%
Wind Speed Vrbl 3 mph
Barometer 29.77 in (1006.8 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 18 Jun 6:55 pm CDT
Extended Forecast for

Mc Henry IL

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 65. Calm wind becoming southwest around 5 mph after midnight.

    Partly Cloudy
    then Slight
    Chance
    T-storms

    Low: 65 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 89. Southwest wind 5 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.

    Mostly Sunny

    High: 89 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 59. Northeast wind 5 to 10 mph becoming light and variable in the evening.

    Mostly Clear

    Low: 59 °F

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 89. Light and variable wind becoming south southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

    Slight Chance
    T-storms then
    Chance
    T-storms

    High: 89 °F

  • Sunday
    Night

    Sunday Night: Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 64. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    T-storms
    Likely

    Low: 64 °F

  • Monday

    Monday: A slight chance of showers and thunderstorms. Partly sunny, with a high near 73. Chance of precipitation is 20%.

    Slight Chance
    T-storms

    High: 73 °F

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 49.

    Partly Cloudy

    Low: 49 °F

  • Tuesday

    Tuesday: Sunny, with a high near 73.

    Sunny

    High: 73 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 53.

    Partly Cloudy

    Low: 53 °F

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 65. Calm wind becoming southwest around 5 mph after midnight.
Saturday
Mostly sunny, with a high near 89. Southwest wind 5 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 59. Northeast wind 5 to 10 mph becoming light and variable in the evening.
Sunday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 89. Light and variable wind becoming south southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 64. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Monday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 73. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Sunny, with a high near 73.
Tuesday Night
Partly cloudy, with a low around 53.
Wednesday
A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 85.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Mc Henry IL
 42.34°N 88.29°W
Last Update:
7:15 pm CDT Jun 18, 2021
Forecast Valid:
7pm CDT Jun 18, 2021-6pm CDT Jun 25, 2021
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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