7:00 AM | Frontal passage ushers in cool change...occasional showers and thunderstorms today and some of the rain will be heavy...another round of showers and thunderstorms during the weekend

6-Day Philly Forecast

Today

Mostly cloudy, much cooler, occasional showers and thunderstorms, some of the rain will be heavy at times, temperatures holding primarily in the 70’s

Tonight

Mostly cloudy, cool, lingering evening showers and thunderstorms, some of the rain will be heavy, lows near 60 degrees late

Friday

Partly sunny, cooler and less humid, maybe a shower or two, near 80 degrees

Friday Night

Partly cloudy, cool, lows near 60 degrees

Saturday

Partly sunny, cool, chance for showers and thunderstorms late in the day or at night, mid-to-upper 70’s

Sunday

Mostly cloudy, cool, showers still possible, maybe a thunderstorm, mid 70’s

Monday

Partly sunny, cool, mid 70’s

Tuesday

Partly sunny, pleasant, upper 70’s

Discussion

Temperatures reached 93 degrees yesterday at Philly Intl Airport (PHL) and it may be quite difficult for us to have another 90 degree day this season - certainly no time in the near future. A strong cool front has reached the region and the result will be noticeably cooler conditions today compared to the past few days along with occasional showers and thunderstorms. Some of the rain will be heavy at times through the evening hours as the front only slowly pushes through the region. There is likely to be flash flooding during this event on many local roadways and waterways. Following the front, it’ll turn less humid on Friday and it’ll stay on the cool side right through the weekend. The weekend is likely to feature some additional rainfall as a strong disturbance pushes in from the Midwest.