Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
A Few Clouds
20°F
-7°C
| Humidity | 65% |
| Wind Speed | NW 9 mph |
| Barometer | 30.18 in (1023.5 mb) |
| Dewpoint | 10°F (-12°C) |
| Visibility | 10.00 mi |
| Wind Chill | 10°F (-12°C) |
| Last update | 3 Dec 8:51 pm CST |
Extended Forecast for
Grayslake IL
Tonight

Low: 0 °F
Chance
FlurriesThursday

High: 14 °F
Sunny
Thursday Night

Low: 0 °F⇑
Partly Cloudy
Friday

High: 25 °F
Partly Sunny
Friday Night

Low: 19 °F
Chance Snow
ShowersSaturday

High: 29 °F
Mostly Cloudy
Saturday Night

Low: 13 °F
Chance Snow
Sunday

High: 24 °F
Partly Sunny
Sunday Night

Low: 5 °F
Mostly Cloudy
Detailed Forecast
Tonight
A chance of flurries before 10pm. Mostly clear, with a low around 0. Wind chill values as low as -10. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday
Sunny, with a high near 14. Wind chill values as low as -12. Northwest wind around 5 mph becoming calm in the afternoon. Winds could gust as high as 10 mph.
Thursday Night
Partly cloudy, with a temperature falling to near 0 by 8pm, then rising to around 8 during the remainder of the night. Wind chill values as low as -8. Light southwest wind becoming south southwest 5 to 10 mph after midnight. Winds could gust as high as 20 mph.
Friday
Partly sunny, with a high near 25. Wind chill values as low as -7. Southwest wind around 10 mph, with gusts as high as 20 mph.
Friday Night
A 40 percent chance of snow showers. Mostly cloudy, with a low around 19. Southwest wind 5 to 10 mph.
Saturday
Mostly cloudy, with a high near 29.
Saturday Night
A 40 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 13.
Sunday
Partly sunny, with a high near 24.
Sunday Night
Mostly cloudy, with a low around 5.
Monday
Partly sunny, with a high near 23.
Monday Night
Snow likely. Mostly cloudy, with a low around 13.
Tuesday
A chance of snow. Mostly cloudy, with a high near 32.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 23.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 35.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Grayslake IL
42.35°N 88.02°W
42.35°N 88.02°W
6:51 pm CST Dec 3, 2025
9pm CST Dec 3, 2025-6pm CST Dec 10, 2025



