Philadelphia, Pa. – Drivers across southeastern Pennsylvania woke to dense fog Wednesday morning, reducing visibility to under a quarter mile on some roads. With storm chances building toward Friday, commuters should expect challenging travel and prepare for rapidly changing conditions.
According to the National Weather Service in Mount Holly, locally dense fog has developed across Delaware, New Jersey, and southeastern Pennsylvania. The agency warned motorists to use low beam headlights and reduce speed during the early drive. I-95, Route 1, and major corridors into Philadelphia are experiencing the heaviest impacts. Visibility should improve later this morning, but additional rain and thunderstorms are expected to build Thursday into Friday.
Philadelphia faces a 70 to 80 percent chance of showers and thunderstorms Thursday, with storms persisting into Friday. The heaviest rainfall could occur between late Thursday night and midday Friday, making both morning and evening commutes slower. While rainfall totals are not expected to exceed an inch, localized downpours could trigger brief street flooding.
Travelers heading into Center City, Cherry Hill, or along I-76 should allow extra time and avoid low-lying roads prone to pooling water. SEPTA and NJ Transit riders may also experience delays if storms track through during peak hours.
The good news: drier, cooler conditions arrive by Saturday, with highs falling back into the upper 70s and partly cloudy skies returning.
Residents should monitor updates from the National Weather Service for potential advisories as conditions evolve.
Five-Day Forecast for Philadelphia, Pa.
- Wednesday: Mostly cloudy, high 83. Dense fog early. 30% chance of showers late.
- Thursday: Showers, storms likely. High 80. Rainfall up to half an inch.
- Friday: Chance of showers, mostly cloudy. High 80. Travel delays possible.
- Saturday: Mostly cloudy, scattered showers after 2 p.m. High 78.
- Sunday: Mostly cloudy, drier. High 78.
