Chicago Weather: Dangerously Cold Temperatures Tuesday; Wind Chills Below Zero

CHICAGO (CBS)-- Temperatures are dropping dangerously low.

First Alert Weather models show the coldest air of the season arrives Tuesday with a high of only 12 degrees.

Wind chills will hover below zero all day.

By the evening, temperatures drop to -6 in the city and -15 in the far west suburbs with wind chills between down to -25.

By Thursday, temperatures climb to the upper 20s and remain in the mid to low 20s for the test of the week.