Temperatures will plummet Sunday after the sun sets, bringing another blast of Arctic cold for the next few days.
Cold air will begin to arrive at about 6 p.m. Sunday, eventually bringing the low temp to -1 from a high of 22.
The cold will bring dangerous wind chills, as low as -20 degrees for the morning commute.
Monday's high of 12 degrees is not only a record for coldest high for the date, but also Chicago's coldest March high in at least 61 years. Monday's low is expected to be 4 degrees.