Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Fair
60°F
16°C
| Humidity | 41% |
| Wind Speed | SW 17 G 25 mph |
| Barometer | 30.39 in (1029.1 mb) |
| Dewpoint | 36°F (2°C) |
| Visibility | 10.00 mi |
| Last update | 18 Oct 12:51 pm CDT |
Extended Forecast for
Grayslake IL
This Afternoon
High: 60 °F
Sunny
Tonight
Low: 40 °F
Clear
Monday
High: 66 °F
Sunny
Monday Night
Low: 42 °F
Partly Cloudy
Tuesday
High: 66 °F
Mostly Sunny
Tuesday Night
Low: 46 °F
Mostly Clear
Wednesday
High: 69 °F
Sunny
Wednesday Night
Low: 47 °F
Mostly Clear
Thursday
High: 72 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 60. South southwest wind around 15 mph, with gusts as high as 30 mph.
Tonight
Clear, with a low around 40. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
Sunny, with a high near 66. Southwest wind around 5 mph.
Monday Night
Partly cloudy, with a low around 42. Southeast wind around 5 mph becoming calm.
Tuesday
Mostly sunny, with a high near 66. Calm wind becoming east southeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Mostly sunny, with a high near 72.
Thursday Night
Mostly clear, with a low around 48.
Friday
Mostly sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 71.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Grayslake IL
42.35°N 88.05°W
42.35°N 88.05°W
12:00 pm CDT Oct 18, 2026
1pm CDT Oct 18, 2026-6pm CDT Oct 24, 2026
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