PHILADELPHIA (WPVI) --TONIGHT: Partly cloudy, blustery and bitterly cold. A Wind Chill Advisory is in effect for wind chills of -10 to -20 (-30 in the Poconos). With temperatures and wind chills this cold, frostbite can occur within 15-25 minutes to the exposed skin. Bundle up! Lows -2/4.
SUNDAY (VALENTINE'S DAY): Sunny and frigid. Dangerously cold wind chills of -10 to -20 during the morning will climb into the teens above zero by afternoon as the winds ease. High 17.
MONDAY (PRESIDENT'S DAY): Increasing clouds. Snow developing during the late morning hours into the first part of the afternoon. Some accumulation is expected before changing over to rain by late afternoon. High 34.
TUESDAY: Breezy and much milder with periods of rain. Some of it heavy at times. High 50.
WEDNESDAY: Sun and clouds, cooler. High 46.
THURSDAY: Sunny and chilly. High 40.
FRIDAY: Clouds and sun, seasonable. High 45
SATURDAY: Mostly cloudy. High: 56.