Philadelphia, Pa. – A stretch of calm September weather greets southeastern Pennsylvania Sunday, bringing mostly sunny skies by day and cooler nights. Drivers should use caution on I-95 and surrounding roadways late Sunday, when overnight cloud cover may limit visibility.
According to the National Weather Service, Philadelphia will reach a high near 84 degrees Sunday with light northwest winds around 5 mph. Clouds return after dark, holding lows near 63, keeping roads damp and reducing visibility for late-night travel.
Monday continues this mild trend, with highs near 83 under mostly sunny skies before another partly cloudy night. Tuesday brings slightly cooler conditions, topping out around 81. Clouds build through Tuesday night, setting the stage for a possible midweek shift.
By Wednesday, skies turn partly sunny with highs near 77. The first chance of showers arrives late Wednesday night, with the National Weather Service calling for a 30 percent chance of rain. Commuters should watch for slick spots on area roads Thursday morning if rainfall develops.
This week offers a mix of warm afternoons and crisp fall-like nights—ideal for outdoor plans through midweek. However, residents should prepare for changing conditions Wednesday night into Thursday. Keep an umbrella nearby and check for updated advisories as rain chances increase.
Five-Day Forecast for Philadelphia, Pa.:
- Sunday: Mostly sunny, high 84. Low 63, partly cloudy.
- Monday: Mostly sunny, high 83. Low 61, partly cloudy.
- Tuesday: Mostly cloudy, high 81. Low 61.
- Wednesday: Partly sunny, high 77. Showers possible late. Low 62.
- Thursday: Partly sunny, high 80. Low 63, partly cloudy.
