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A winter weather advisory went into effect early Tuesday for Lake and McHenry counties, signaling the fast return of winter.
Freezing rain is expected to mix with snow through the morning and then fully change to snow, producing between two and four inches within city limits and three to five inches in the northwest suburbs.
Cold settles in, turning early Tuesday's low 40s to 20s and below by the end of the day. Strong winds from the north could gust up to 35 mph, causing blowing, drifting snow and possibly hazardous travel conditions during the evening commute.
The winter weather advisory is expected to expire at 9 p.m. as skies gradually clear and wind chill readings reach zero to -10.
The mercury rises back to the 20s by Wednesday and stays there for the rest of the week. Light snow is possible Thursday and Friday with some accumulation.