CWS Forecast: Southeast Pennsylvania (Philadelphia)
A somewhat muggy, more unsettled pattern will continue across much of central Pennsylvania Thursday, with considerable cloud cover and a few afternoon showers and storms possible before conditions turn slightly cooler and less humid Friday. Saturday kicks of the weekend with an unsettled pattern, featuring periodic clouds, scattered showers or thunderstorms, and temperatures fluctuating around the mid 70s. A warmer and more humid feel then redevelops starting Sunday, with partly sunny skies and highs around the low 80s beginning the work week, although afternoon showers and storms cannot be ruled out.

Day One: Wednesday, September 9th, 2026
Cloudy with a chance of rain in the morning. Mostly cloudy overnight. Temperatures rising well above average.
High: 86°F
Low: 74°F
Day Two: Thursday, September 10th, 2026
Cloudy with a chance of early-morning showers. Mostly clear skies later in the day into the night as temperatures begin to fall.
High: 80°F
Low: 66°F
Day Three: Friday, September 11th, 2026
Mostly cloudy through the day. Cloudy with a chance of showers overnight.
High: 83°F
Low: 63°F
Day Four: Saturday, September 12th, 2026
Cloudy with afternoon showers. Skies clearing later in the day and overnight.
High: 82°F
Low: 70°F
Day Five: Sunday, September 13th, 2026
Mostly cloudy with showers throughout the day, clearing up overnight. Staying hot during the day.
High: 85°F
Low: 70°F






