Philadelphia, PA – Flooding and strong thunderstorms could upend travel plans across southeastern Pennsylvania on Saturday, May 31, with up to 2 inches of rain expected in some areas. The worst of the storm activity is forecast between 5 a.m. and 5 p.m., bringing a 90% chance of rain, and potential road washouts on stretches of I-76 and Route 1.
According to the National Weather Service, a Flood Watch is in effect through Saturday morning as showers and thunderstorms push through the region. Rainfall totals between a quarter-inch to two inches could fall quickly, especially during isolated storms. Gusts up to 20 mph and reduced visibility may impact travel during the late morning and early afternoon hours.
Residents are urged to avoid flooded underpasses and low-lying roads, particularly near the Schuylkill River, where water tends to rise quickly. Keep devices charged and monitor alerts from Philadelphia OEM in case of power outages or hazardous road conditions.
Relief arrives Sunday, June 1, with sunny skies and a high near 70°F. The calm weather continues into early June, with highs rising steadily: 75°F on Monday, 81°F by Tuesday, and upper 80s possible midweek. Smoke from Canadian wildfires may reduce air quality slightly during the first few days of the week.
Looking ahead:
- Sunday (June 1): Sunny, 70°F
- Monday: Sunny, 75°F
- Tuesday: Sunny, 81°F
- Wednesday: Sunny, 87°F
- Thursday: Mostly sunny with a chance of showers, high near 88°F
A classic early-summer stretch sets in starting Sunday. Stay weather-aware through Saturday, and enjoy the drier, sunnier days to follow.
