7:00 AM | Threat continues today for showers and thunderstorms...weekend showers and thunderstorms usher in noticeable relief by early next week

6-Day Philly Forecast

Today

Partly sunny skies, quite warm and humid, still the chance for showers and thunderstorms, highs in the mid-to-upper 80’s

Tonight

An evening shower or thunderstorm possible; otherwise, artly cloudy skies, quite mild, lows in the upper 60’s

Friday

Partly sunny skies, quite warm and humid, chance continues for showers and thunderstorms, mid 80’s

Friday Night

An evening shower or thunderstorm possible; otherwise, mostly cloudy skies, mild, mid-to-upper 60’s

Saturday

Partly sunny skies, warm and humid, chance for showers and thunderstorms late in the day or at night, low-to-mid 80’s

Sunday

Mostly cloudy skies, not as warm, chance for showers and thunderstorms, mid-to-upper 70’s

Monday

Mostly cloudy skies, even cooler, chance for showers, mid-to-upper 60's

Tuesday

Mostly cloudy skies, comfortably cool, chance for showers, upper 60's

Discussion

A weakening cool frontal system approached the region yesterday and it will stall out in the area today while continuing to dissipate. This frontal boundary zone - albeit on the weak side - will still generate enough instability in the atmosphere to continue the threat for showers and thunderstorms right into the weekend. Another frontal system - a much more significant cool front - will arrive late Saturday night/Sunday and with it will come a solid band of showers and thunderstorms. Following this weekend frontal passage, there will be much in the way of relief of this warmth and humidity for later Sunday, Monday and Tuesday. In fact, temperatures could hold in the 60's for highs in many parts of the I-95 corridor on Monday and Tuesday as cool high pressure in southeastern Canada takes control.