7:00 AM | Threat grows for a cool, rainy end-of-week

6-Day Philly Forecast

Today

Mainly sunny, still quite warm, humid, cannot rule out another shower or thunderstorm this afternoon, highs near 90 degrees

Tonight

Partly cloudy skies, becoming more comfortable, lows in the mid 60’s

Wednesday

Mainly sunny, pleasant, mid 80’s

Wednesday Night

Partly cloudy, comfortably cool, low 60’s

Thursday

Increasing clouds, cool with the chance for showers at night, highs confined to near 80 degrees

Friday

Mainly cloudy, still on the cool side with periods of rain likely, maybe a thunderstorm, upper 70's

Saturday

Clouds early with lingering showers possible then partly sunny, still on the cool side, near 80 degrees

Sunday

Partly sunny, comfortable, near 80 degrees

Discussion

A cool, rainy day is an increasing possibility at the end of the week…a cool frontal system is stalling out just south of here and a wave of low pressure will ride along its boundary zone later in the week. Temperatures will trend downward over the next few days and be closer to the 80 degree mark for highs by Thursday rather than the 90 degrees that we’ve been accustomed to in recent days. Showers are likely in the cooler air mass late this week and there is a growing chance for some steady rain as we close out the work week and begin the weekend.