Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Fair
9°F
-13°C
| Humidity | 70% |
| Wind Speed | NW 5 mph |
| Barometer | 30.02 in (1018.3 mb) |
| Dewpoint | 1°F (-17°C) |
| Visibility | 10.00 mi |
| Wind Chill | 0°F (-18°C) |
| Last update | 1 Jan 4:51 am CST |
Extended Forecast for
Grayslake IL
New Year's Day
High: 18 °F
Chance Snow
Tonight
Low: 12 °F
Gradual
ClearingFriday
High: 24 °F
Sunny
Friday Night
Low: 15 °F
Mostly Cloudy
Saturday
High: 28 °F
Mostly Cloudy
Saturday Night
Low: 13 °F
Mostly Clear
Sunday
High: 28 °F
Mostly Sunny
Sunday Night
Low: 24 °F
Chance Snow
then Mostly
CloudyMonday
High: 40 °F
Partly Sunny
Detailed Forecast
New Year's Day
A 30 percent chance of snow, mainly before 2pm. Increasing clouds, with a high near 18. Wind chill values as low as -2. West northwest wind around 5 mph, with gusts as high as 15 mph.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 12. West wind around 5 mph, with gusts as high as 10 mph.
Friday
Sunny, with a high near 24. West northwest wind around 5 mph, with gusts as high as 10 mph.
Friday Night
Mostly cloudy, with a low around 15. Northwest wind around 5 mph.
Saturday
Mostly cloudy, with a high near 28. West northwest wind around 5 mph.
Saturday Night
Mostly clear, with a low around 13.
Sunday
Mostly sunny, with a high near 28.
Sunday Night
A chance of snow before midnight. Mostly cloudy, with a low around 24.
Monday
Partly sunny, with a high near 40.
Monday Night
Mostly cloudy, with a low around 29.
Tuesday
Mostly cloudy, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Mostly cloudy, with a high near 40.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Grayslake IL
42.33°N 88.03°W
42.33°N 88.03°W
3:16 am CST Jan 1, 2026
5am CST Jan 1, 2026-6pm CST Jan 7, 2026
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