Frost bite and hypothermia are possible in as little as 15 minutes for people not properly dressed for the weather, so the National Weather Service is urging people to use common sense.
If going outside, dress in layers of clothing, cover skin, minimize exposure to the cold weather.
The weather service says this morning is bringing temperatures in the low single digits for the area with a wind child factor of 10 to 20 below zero.
"If you are planning to venture out this morning," the weather service says, "use common sense."