Maps show cold temperatures in eastern U.S., early season lake effect snow due to polar vortex

A harsh drop in temperatures is being delivered to the eastern two thirds of the U.S. thanks to a polar vortex dipping down ...

Cool, fall Sunday with partly sunny skies in the Philadelphia area. Here's the weather forecast.

Expect a pleasant and seasonable Sunday with sunshine returning by the afternoon and highs in the upper 50s to low 60s.

Winds Wednesday evening in Philadelphia region could prompt power outages. Here's the weather forecast.

A NEXT Weather Alert will be in effect Wednesday night in the Philadelphia region due to powerful winds that could cause ...

Rain returns this weekend as first taste of winter approaches Philadelphia area. Here's the weather forecast.

Next week: COLD! Highs Monday and Tuesday will only stay in the mid-upper 40s with widespread freezing temps likely by Tuesday morning and when you add the breeze to the mix, wind chill temps by ...

Mostly cloudy Monday in Philadelphia region, morning showers possible. Here's the weather forecast.

Monday in the Philadelphia region will be mostly cloudy with a few light showers possible along the Delaware beaches and ...

Breezy Wednesday in Philadelphia region, storms on the way. Here's the weather forecast.

Wednesday in the Philadelphia region will be breezy, and storms will arrive at night to bring widespread wind and rain to the Delaware Valley.

Rainy, windy Thursday in Philadelphia area, localized flooding possible. Here's the weather forecast.

Ponding and localized urban flooding is a possibility. In addition to the heavy rain, a rumble or two of thunder is possible ...