The storm comes after the area saw its first major storm of the season earlier this week, with several inches of snow and some freezing rain.
A wintry mix of sleet and freezing rain will move into the southwest suburbs between 7 a.m. and 9 a.m., reaching the city after 10 a.m. Ice accumulations will be highest in places like LaSalle, Morris, and Pontiac, but Naperville, Joliet and Kankakee could also see significant icing.
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Between noon and 5 p.m., it will change to wintry mix and rain before changing back to a wintry mix and snow between 5 p.m. and midnight.
The National Weather Service has issued an Ice Storm Warning for Ford, Grundy, Kankakee, Iroqius, LaSalle and Livingston counties in effect until 6 p.m. Friday.
A Winter Weather Advisory will take effect from 10 a.m. Friday until midnight Saturday for Cook, DeKalb, DuPage, Kane, Kendall and Will counties.
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Much of Northwest Indiana is also under a Winter Weather Advisory until Friday night. In Lake and Porter counties, it extends until 1 a.m. EST Saturday.
Snow accumulation is expected to be between 1-4 inches of snow, with higher amounts to the north and west.
Some areas under the ice storm warning could see up to a half an inch of ice, which could create slick roads and potentially could lead to power outages as well. Other areas could also see around a tenth of an inch of ice.
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