Showers, Slight Lightning Risk at US Open

While the threat of severe weather has ended for the U.S. Open at Ardmore, Pa., there will be additional showers and the risk of thunderstorms this weekend.

While the weather will be rather cool over southeastern Pennsylvania going into the weekend, enough warmth is forecast to cook up spotty showers.

One of these showers could become tall enough to yield a thunderstorm with a few lightning strikes at Merion. The most likely time for such a storm would be between 2:00 and 8:00 p.m.

The cool and breezy conditions Friday are being produced by a departing nor'easter off the New England coast.

Saturday appears to be a near-perfect day for golf and just about any outdoor plans.

Abundant sunshine is on tap with a light breeze and low humidity. Showers should avoid the region this day.

The chance of receiving a shower or thunderstorm will increase Sunday afternoon as a system rolls in from the Midwest then crosses the Appalachians.

A southwest breeze will kick up Sunday as well.

Despite the risk of a shower or thunderstorm Friday and Sunday afternoon, most of the time will be free of rain at Merion this weekend.