Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. The Arctic front will continue to bring increasing winds to the Northeast that will remain gusty. Subfreezing overnight low temperatures will be found as far south as the Gulf Coast. Read More >

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Light Snow

16°F

-9°C

Humidity	74%
Wind Speed	NW 13 G 22 mph
Barometer	30.18 in (1024.1 mb)
Dewpoint	9°F (-13°C)
Visibility	7.00 mi
Wind Chill	2°F (-17°C)
Last update	29 Dec 8:51 pm CST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

McHenry IL

Tonight
Low: 10 °F
Chance
Flurries
Tuesday
High: 26 °F
Slight Chance
Snow then
Snow Likely
Tuesday Night
Low: 25 °F
Snow Likely
then Mostly
Cloudy
Wednesday
High: 30 °F
Mostly Cloudy
then Snow
Likely
Wednesday Night
Low: 7 °F
Slight Chance
Snow then
Mostly Clear
New Year's Day
High: 19 °F
Mostly Sunny
Thursday Night
Low: 12 °F
Mostly Cloudy
Friday
High: 26 °F
Mostly Sunny
Friday Night
Low: 15 °F
Partly Cloudy

Detailed Forecast

Tonight

A chance of flurries before midnight. Partly cloudy, with a low around 10. Wind chill values as low as -2. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

Tuesday

Snow likely, mainly after 3pm. Increasing clouds, with a high near 26. Wind chill values as low as -2. West southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Tuesday Night

Snow likely, mainly before 9pm. Mostly cloudy, with a steady temperature around 25. West northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Wednesday

Snow likely after noon. Cloudy, with a high near 30. West northwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Wednesday Night

A 20 percent chance of snow before midnight. Partly cloudy, with a low around 7. North northwest wind 5 to 10 mph, with gusts as high as 20 mph.

New Year's Day

Mostly sunny, with a high near 19.

Thursday Night

Mostly cloudy, with a low around 12.

Friday

Mostly sunny, with a high near 26.

Friday Night

Partly cloudy, with a low around 15.

Saturday

Mostly sunny, with a high near 28.