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

Heat and Monsoonal Conditions This Week

Dangerous heat will build across portions of the West through this week where new daily record highs are forecast. Monsoonal showers and thunderstorms may result in flash flooding and debris flows for portions of Southwest into the Four Corners and central Rockies through at least the midweek. Stationary frontal boundary across the South and Southeast will focus showers and thunderstorms. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Mostly Cloudy

68°F

20°C

Humidity 81%
Wind Speed NE 5 mph
Barometer 30.05 in (1016.9 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 15 Aug 7:55 am CDT
Extended Forecast for

Grayslake IL

  • Today

    Today: Partly sunny, with a high near 76. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Partly Sunny

    High: 76 °F

  • Tonight

    Tonight: Mostly cloudy, with a low around 63. North northeast wind around 5 mph, with gusts as high as 15 mph.

    Mostly Cloudy

    Low: 63 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Mostly Sunny

    High: 78 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 61. North northeast wind around 5 mph, with gusts as high as 15 mph.

    Mostly Clear

    Low: 61 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78. East northeast wind 5 to 10 mph.

    Mostly Sunny

    High: 78 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 59.

    Mostly Clear

    Low: 59 °F

  • Thursday

    Thursday: Sunny, with a high near 80.

    Sunny

    High: 80 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 61.

    Partly Cloudy

    Low: 61 °F

  • Friday

    Friday: A chance of showers after 1pm. Mostly sunny, with a high near 81.

    Mostly Sunny
    then Chance
    Showers

    High: 81 °F

Detailed Forecast

Today
Partly sunny, with a high near 76. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Tonight
Mostly cloudy, with a low around 63. North northeast wind around 5 mph, with gusts as high as 15 mph.
Tuesday
Mostly sunny, with a high near 78. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
Mostly clear, with a low around 61. North northeast wind around 5 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 78. East northeast wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 61.
Friday
A chance of showers after 1pm. Mostly sunny, with a high near 81.
Friday Night
A chance of showers. Mostly cloudy, with a low around 63.
Saturday
A chance of showers. Partly sunny, with a high near 79.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 62.
Sunday
A chance of showers. Partly sunny, with a high near 76.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Grayslake IL
 42.33°N 88.03°W
Last Update:
8:15 am CDT Aug 15, 2022
Forecast Valid:
8am CDT Aug 15, 2022-6pm CDT Aug 21, 2022
 
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