DeKALB – Residents are advised to dress warm or stay indoors as the region braces today for the lowest temperatures of the winter season.

Temperatures that hung in the single digits Monday afternoon were expected to drop to 4 below zero overnight. But factoring in wind gusts, wind chills of between minus-25 and minus-15 degrees are expected.

A wind chill advisory from the National Weather Service was in effect from 6 p.m. Monday to 9 a.m. today. Much of the Midwest is covered by either a wind chill advisory or warning.