Bundle up if you need to go outside on Tuesday morning. Sub-zero wind chills are possible in the area.

Temperatures in the single digits Monday, and gusty wind conditions have made for wind chills well below zero degrees in the Chicago area.

Gold (GC=F) futures opened at $4,633.70 per troy ounce Tuesday, 0.8% higher than Friday’s closing price of $4,595.40.

With wind chills expected to make temperatures below zero, the National Weather Service has issued a cold weather advisory for Tuesday morning.

It's unclear if Bill Self will join Kansas in time for Tuesday's game against Colorado, though he's "feeling better" after receiving IV fluids.