As of 7 PM Friday evening, wind chill numbers are already in the single digits below zero to as cold as -10° in Galena. From this point, things will just continue to get colder through Saturday morning as wind continue to be blustery overnight. It is going to be one of those nights where you want to add blankets to the bed and crank the heat up. By the time we wake up on Saturday morning, wind chills could be flirting with -20°. Those are potentially dangerous levels, and shouldn't be taken lightly.