CWS Forecast: Southeast Pennsylvania (Philadelphia)

Day One: Thursday, September 17th, 2026
Mostly cloudy with a slight chance of showers in the evening and overnight.
High: 86°F
Low: 71°F
Day Two: Friday, September 18th, 2026
Sunny, becoming partly cloudy overnight.
High: 80°F
Low: 64°F
Day Three: Saturday, September 19th, 2026
Partly to mostly cloudy. Showers possible overnight, especially after midnight.
High: 80°F
Low: 66°F
Day Four: Sunday, September 20th, 2026
Overcast with a chance of rain all day, especially overnight.
High: 81°F
Low: 66°F
Day Five: Monday, September 21st, 2026
Widespread rain especially in the morning. Mostly cloudy overnight.
High: 77°F
Low: 65°F







