By Mary Kay Kleist

CHICAGO (CBS) — Fog and low clouds may linger through the morning rush.

Commute: 12.20.19

(Credit: CBS 2)

Visibility: 12.20.19

(Credit: CBS 2)

Lows in the morning will fall into the 20s, with poor visibility as fog develops.

Highs Tomorrow: 12.20.19

(Credit: CBS 2)

But then, the warming trend begins. The normal high is 33 degrees, and we expect to be 10 degrees above average in spots for Friday.

Highs climb to the mid- to upper 40s over the weekend.

The high on Monday climbs all the way to 49. Mostly sunny skies are expected day from Saturday through Monday.

Mary Kay Kleist