The National Weather Service issued a freezing rain advisory beginning Friday night for the Chicago area ahead of a frigid night and possible ice accumulations of up to two-tenths of an inch.
The advisory was issued from 11 p.m. Friday to 9 a.m. Saturday for Cook, Lake, Kane, Winnebago, Boone, McHenry, Ogle, Lee, DeKalb, DuPage, Kendall and Will counties in Illinois and Lake and Porter counties in Indiana.
Scattered freezing rain showers are expected to develop toward midnight and continue into Saturday morning. The NWS warned roads will become ice-covered, making travel "extremely hazardous" on untreated roads.
NBC 5 weather models show temperatures slowly rising Saturday morning, turning freezing precipitation into rain. Overcast skies and occasional showers and drizzle are expected, but brisk southerly winds could send temperatures well into the 40s later in the day.
More rain showers are possible overnight Saturday into Sunday, but even warmer temps are expected in the upper 40s to low 50 by Sunday afternoon.
Expect steadier rain for the rest of Sunday into early Monday with more than an inch possible area-wide and minor flooding possible.
The rest of the week trends much colder with light snow or flurries through Thanksgiving Day.