By Geoff Bansen

PHILADELPHIA (CBS) – A glorious fall weekend looms, but first we have to get over a minor speed bump that stands in the way.

Some early sun will give way to more clouds by the afternoon. A swift-moving cold front to the west will bring a line showers and even a few thunderstorms to the Delaware Valley during the late afternoon and evening hours.

Ahead of this front, temperatures will soar into the upper 70s to near 80° this afternoon, very warm for October.

The bulk of the wet weather will move through the Lehigh Valley and Poconos between 3 p.m. and 5 p.m., Philadelphia and the surrounding suburbs between 5 p.m. and 7 p.m., and shore points between 7 p.m. and 9 p.m. There is not a tremendous amount of moisture with this front, with generally only .1-.3″ expected to fall. Keep in mind that any thunderstorms could produce some gusty winds and downpours, which would make for locally higher amounts.

Skies will then gradually begin to clear, and temperatures will also cool off, just in time for the weekend. The sun will shine brightly Saturday and Sunday, with highs in the mid to upper 60s.

The pleasant fall weather continues right into next week, with temperatures back into the 70s on Columbus Day.