Cold winds moving in tonight, dropping wind chills to near 20 by daybreak. Gusts to 35 mph Saturday will make it feel even colder. And Sunday morning will see the FIRST below freezing temperature of the season in Philadelphia – a record late start. The warmup begins Sunday and peaks with record warmth Christmas Eve.

Tonight: Clearing, breezy and colder. Low 31 in Philadelphia / 28 north and west

Sat: Partly sunny, windy and cold. High 41. Wind chills in 20s

Sun: Sunny and cold. Low 29 / High 45

Mon: Mostly sunny and warmer. High 58

Tues: Mostly cloudy and warmer with a chance of showers. High 61

Wed: Warm with showers likely. High 66

Thu: Partly sunny with record warmth and a chance of showers. High 70

Christmas Day: Mostly sunny and cooler. High 55

Glenn "Hurricane" Schwartz

Chief Meteorologist, NBC10 Philadelphia