Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Mostly Cloudy
34°F
1°C
| Humidity | 79% |
| Wind Speed | W 3 mph |
| Barometer | 30.04 in (1018.3 mb) |
| Dewpoint | 28°F (-2°C) |
| Visibility | 10.00 mi |
| Last update | 19 Mar 12:51 am CDT |
Extended Forecast for
Grayslake IL
Overnight
Low: 31 °F
Mostly Cloudy
Thursday
High: 49 °F
Mostly Sunny
Thursday Night
Low: 36 °F
Mostly Cloudy
Friday
High: 60 °F
Mostly Cloudy
Friday Night
Low: 37 °F
Mostly Cloudy
Saturday
High: 62 °F
Mostly Sunny
Saturday Night
Low: 43 °F
Partly Cloudy
Sunday
High: 55 °F
Mostly Cloudy
Sunday Night
Low: 29 °F
Mostly Cloudy
Detailed Forecast
Overnight
Mostly cloudy, with a low around 31. Calm wind.
Thursday
Mostly sunny, with a high near 49. Calm wind becoming east southeast around 5 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 36. East southeast wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 15 mph.
Friday
Mostly cloudy, with a high near 60. West southwest wind around 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 37. North wind around 5 mph.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Mostly cloudy, with a high near 55.
Sunday Night
Mostly cloudy, with a low around 29.
Monday
Mostly sunny, with a high near 41.
Monday Night
Mostly cloudy, with a low around 29.
Tuesday
Mostly cloudy, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Mostly cloudy, with a high near 52.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Grayslake IL
42.35°N 88.02°W
42.35°N 88.02°W
1:20 am CDT Mar 19, 2026
1am CDT Mar 19, 2026-6pm CDT Mar 25, 2026
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