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Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Fair
55°F
13°C
| Humidity | 96% |
| Wind Speed | SW 5 mph |
| Barometer | 30.08 in (1018.6 mb) |
| Dewpoint | 54°F (12°C) |
| Visibility | 10.00 mi |
| Wind Chill | 54°F (12°C) |
| Last update | 10 Oct 7:51 pm CDT |
Extended Forecast for
Grayslake IL
Tonight
Low: 42 °F
Mostly Clear
Saturday
High: 65 °F
Sunny then
Slight Chance
ShowersSaturday Night
Low: 48 °F
Partly Cloudy
Sunday
High: 67 °F
Sunny
Sunday Night
Low: 52 °F
Partly Cloudy
Columbus Day
High: 72 °F
Partly Sunny
Monday Night
Low: 51 °F
Mostly Cloudy
Tuesday
High: 66 °F
Mostly Sunny
Tuesday Night
Low: 48 °F
Mostly Cloudy
Detailed Forecast
Tonight
Mostly clear, with a low around 42. West southwest wind 5 to 10 mph becoming north in the evening.
Saturday
A 20 percent chance of showers after 1pm. Increasing clouds, with a high near 65. North northeast wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 48. Northeast wind around 5 mph becoming east southeast after midnight.
Sunday
Sunny, with a high near 67. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday Night
Partly cloudy, with a low around 52. South southeast wind 5 to 10 mph.
Columbus Day
Partly sunny, with a high near 72.
Monday Night
Mostly cloudy, with a low around 51.
Tuesday
Mostly sunny, with a high near 66.
Tuesday Night
Mostly cloudy, with a low around 48.
Wednesday
Mostly sunny, with a high near 63.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 66.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 69.
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
4:11 pm CDT Oct 10, 2025
8pm CDT Oct 10, 2025-6pm CDT Oct 17, 2025
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