The Chicago area saw its fourth subzero reading of the month Monday morning when the city’s official thermometer bottomed out at 2 below zero. Despite plenty of sunshine, the high hit only 17 degrees, making it the coldest Christmas Eve since 2004, when the mercury peaked at 12.
Temperatures will be on the upswing Christmas Day as gusty southwest winds usher in some milder air, but some snow will accompany the warm-up. Totals of 1 to 2 inches are expected. South portions of the metro area could see a white Christmas after last weekend’s rain and above-freezing temperatures erased most of the snow cover. The cold will relax its grip on the area this weekend as temperatures break well above freezing Saturday before the next Arctic blast sends the mercury plunging to subzero levels by Monday morning.