A wind chill advisory is in effect through noon Thursday and again from 6 p.m. Thursday until 10 a.m. Friday. Wind chill values could reach 20 to 25 below zero Thursday morning and between 20 to 30 below zero Thursday night and into Friday morning, according to the National Weather Service.
Meanwhile, no local school districts reported school closings Tuesday on the Emergency Closing Center's website. Earlier this month, the Chicago area saw a two-day stretch of extreme cold where temperatures in the negative teens and wind chill values of -40 to -50 were in the forecast.
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Temperatures will cool again Thursday night to several degrees below zero with wind gusts up to 25 mph. The combination will allow wind chill values to quickly fall to 20 to 30 below zero Thursday night.
Frostbite and hypothermia can occur within minutes when exposed to such weather conditions. For those who must go outdoors, the National Weather Service reminds residents to wear hats and gloves. Pets should be brought indoors.