Weather Forecast September 2024 Philadelphia Weather Forecast

Weather Forecast September 2024 Philadelphia Weather Forecast. Expect 25°c daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in philadelphia in september. September and october will be cooler than normal in the north and warmer than normal in the south, with below.

On warmer days, temperatures can reach up to 77.54°f (25.3°c), making it quite pleasant for outdoor. September weather in philadelphia pennsylvania, united states.