News Headlines
- March 13, 2026: Damaging Non-Thunderstorm Winds With 60+ MPH Gusts
- March 10, 2026: Strong Tornadoes in the Kankakee River Valley and Giant Hail
- Spring Seminars and Virtual Spotter Training: Click Here for More Information!
- Spring Flood Outlook: Below average to near average flood risk for area river basins
Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Heavy Snow Fog/Mist
24°F
-4°C
| Humidity | 84% |
| Wind Speed | NW 10 G 30 mph |
| Barometer | 29.34 in (994.9 mb) |
| Dewpoint | 20°F (-7°C) |
| Visibility | 1.25 mi |
| Wind Chill | 14°F (-10°C) |
| Last update | 16 Mar 5:51 am CDT |
Extended Forecast for
Grayslake IL
Winter Weather Advisory March 16, 06:34am until March 16, 01:00pm
NOW until 1:00pm Mon

Winter Weather Advisory
Today

High: 23 °F
Snow and
Areas Blowing
SnowTonight
Low: 7 °F
Slight Chance
Snow and
Patchy
Blowing SnowTuesday

High: 23 °F
Mostly Sunny
Tuesday Night
Low: 18 °F
Chance Snow
then Snow
LikelyWednesday

High: 41 °F
Mostly Cloudy
Wednesday Night
Low: 31 °F
Mostly Cloudy
then Slight
Chance RainThursday

High: 49 °F
Mostly Sunny
Thursday Night

Low: 33 °F
Mostly Cloudy
Detailed Forecast
Today
Snow, mainly before 1pm. Areas of blowing snow. High near 23. Blustery, with a northwest wind around 25 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
A 20 percent chance of snow before 10pm. Patchy blowing snow before 9pm. Cloudy during the early evening, then gradual clearing, with a low around 7. Wind chill values as low as -5. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday
Mostly sunny, with a high near 23. Wind chill values as low as -7. West northwest wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Snow likely, mainly after 1am. Cloudy, with a low around 18. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Wednesday
Mostly cloudy, with a high near 41. Southwest wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 31.
Thursday
Mostly sunny, with a high near 49.
Thursday Night
Mostly cloudy, with a low around 33.
Friday
Mostly cloudy, with a high near 54.
Friday Night
Mostly cloudy, with a low around 38.
Saturday
Partly sunny, with a high near 57.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Partly sunny, with a high near 51.
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
4:01 am CDT Mar 16, 2026
6am CDT Mar 16, 2026-6pm CDT Mar 22, 2026



