Tracking Storm System Across the Eastern U.S.

A storm system will continue to produce widespread showers and thunderstorms as it progresses eastward across the central U.S. into the Northeast through the weekend. There are risks of severe thunderstorms and excessive rainfall on Saturday from the Ozarks into the mid-Mississippi River Valley with potential for damaging winds, large hail, tornadoes, and flash flooding. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Mostly Cloudy

62°F

17°C

Humidity	96%
Wind Speed	SW 10 mph
Barometer	29.67 in (1003.9 mb)
Dewpoint	61°F (16°C)
Visibility	10.00 mi
Last update	18 Oct 7:51 am CDT

More Information:

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

Extended Forecast for

Mc Cullom Lake IL

Today
High: 74 °F
Chance
T-storms then
Slight Chance
Showers
Tonight
Low: 48 °F
Showers
Sunday
High: 58 °F
Rain Likely
and Breezy
Sunday Night
Low: 37 °F
Mostly Clear
Monday
High: 64 °F
Sunny
Monday Night
Low: 43 °F
Chance
Showers
Tuesday
High: 52 °F
Mostly Sunny
then Slight
Chance
Showers and
Breezy
Tuesday Night
Low: 38 °F
Partly Cloudy
Wednesday
High: 56 °F
Mostly Sunny

Detailed Forecast

Today

A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 4pm. Mostly cloudy, with a high near 74. West southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

Tonight

Showers and possibly a thunderstorm before 1am, then rain and possibly a thunderstorm between 1am and 4am, then rain after 4am. Low around 48. South southwest wind 5 to 10 mph becoming northwest 10 to 15 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Sunday

Rain likely, mainly before 1pm. Cloudy through mid morning, then gradual clearing, with a high near 58. Breezy, with a northwest wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

Sunday Night

Mostly clear, with a low around 37. West wind 5 to 10 mph, with gusts as high as 20 mph.

Monday

Sunny, with a high near 64. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.

Monday Night

A 50 percent chance of showers, mainly before 1am. Partly cloudy, with a low around 43.

Tuesday

A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 52. Breezy.

Tuesday Night

Partly cloudy, with a low around 38.

Wednesday

Mostly sunny, with a high near 56.