Philadelphia, PA – Wet roads and slow commutes could begin within the next 48 hours as rain chances surge to 70% by Wednesday afternoon across the Delaware Valley.
According to the National Weather Service in Mount Holly, a warm but unsettled pattern will build through midweek, with precipitation probabilities climbing from 20–40% Tuesday to as high as 70–75% Wednesday afternoon and evening. A cold front approaching late Wednesday will drive the most widespread showers.
Across Pennsylvania, New Jersey, and Delaware, highs push into the upper 70s and low 80s by Wednesday, including near 82°F in Philadelphia and Wilmington. That warmth fuels instability, increasing the likelihood of steady rain and brief heavier downpours during peak travel hours. I-95, the Schuylkill Expressway, and Route 1 corridors may see reduced visibility and pooling water.
Cities including Allentown, Reading, Trenton, and Atlantic City all face similar midweek timing, with rain chances peaking between midday Wednesday and early Thursday. Coastal areas like Toms River and Atlantic City could see prolonged wet periods into Thursday morning.
Drivers should allow extra time, avoid flooded roadways, and charge devices in case of isolated outages. The unsettled pattern lingers into Friday with lingering 30–40% rain chances.
More advisories may be issued as the midweek system approaches.
Five Day Forecast for Philadelphia, PA
Monday: High 66°F / Low 48°F – Dry early, increasing clouds
Tuesday: High 78°F / Low 58°F – Spotty showers (20–40%)
Wednesday: High 82°F / Low 65°F – Rain likely (up to 70%)
Thursday: High 69°F / Low 57°F – Showers continue (30–50%)
Friday: High 78°F / Low 56°F – Isolated showers (30–40%)
