Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Fair
67°F
19°C
| Humidity | 53% |
| Wind Speed | SW 10 mph |
| Barometer | 29.85 in (1010.9 mb) |
| Dewpoint | 49°F (9°C) |
| Visibility | 10.00 mi |
| Last update | 14 Nov 2:51 pm CST |
Extended Forecast for
Grayslake IL
This Afternoon

High: 64 °F
Sunny
Tonight

Low: 54 °F⇑
Increasing
CloudsSaturday

High: 67 °F
Decreasing
CloudsSaturday Night

Low: 33 °F
Mostly Clear
Sunday

High: 47 °F
Sunny
Sunday Night

Low: 27 °F
Mostly Clear
Monday

High: 45 °F
Mostly Sunny
Monday Night

Low: 35 °F
Chance Rain
Tuesday
High: 44 °F
Chance Rain
then Partly
Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 64. South wind 5 to 10 mph.
Tonight
Increasing clouds, with a temperature rising to around 57 by 1am. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 67. Southwest wind around 15 mph becoming northwest in the afternoon. Winds could gust as high as 30 mph.
Saturday Night
Mostly clear, with a low around 33. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 47. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 27.
Monday
Mostly sunny, with a high near 45.
Monday Night
A chance of rain. Mostly cloudy, with a low around 35.
Tuesday
A chance of rain before noon. Partly sunny, with a high near 44.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Partly sunny, with a high near 47.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 36.
Thursday
Rain likely. Mostly cloudy, with a high near 50.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Grayslake IL
42.37°N 88.05°W
42.37°N 88.05°W
3:06 pm CST Nov 14, 2025
3pm CST Nov 14, 2025-6pm CST Nov 20, 2025


