A brief cold blast will start moving in Friday and last for much of the weekend before warming right back up next week. Saturday will be the coldest day, and Saturday night the coldest night. But we could be back to record warmth by Christmas Eve.

Tonight: Rain ends early. Clouds linger. Low 44 in Philadelphia / 40 north and west

Fri: Clouds to sun. Windy and colder. High 49

Sat: Partly sunny, windy and cold. High 41

Sun: Sunny and cold. Low 29 / High 45

Mon: Mostly sunny and warmer. High 58

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

Wed: Warm with showers likely. High 64

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

Glenn "Hurricane" Schwartz

Chief Meteorologist, NBC10 Philadelphia