Philadelphia, Pa. – Sunshine and soaring temps will heat up southeast Pennsylvania Saturday, but Philadelphia residents should prepare now for possible storms by Monday night.
According to the National Weather Service, dry and clear conditions continue through Sunday with highs nearing 90°F and lows in the upper 60s to low 70s. But the pattern shifts Monday as a cold front brings a 30% chance of scattered thunderstorms after 8 p.m., especially along heavily traveled corridors like Interstate 95 and U.S. Route 1.
While Saturday and Sunday remain ideal for outdoor plans, rising humidity could increase discomfort by Sunday afternoon. Monday’s high will again approach 89°F, with the first storm chances moving in Monday night. Flash flooding isn’t expected, but residents are urged to stay informed and charge devices ahead of any potential outages.
Showers and storms become more likely after 2 p.m. Tuesday, followed by a slight cooldown Wednesday, though highs will still push into the upper 80s. With back-to-back 90° days possible, hydration and limited outdoor exposure during peak heat are key safety tips.
Storm chances persist through Thursday, with potential clearing by Friday. While widespread severe weather isn’t expected, daily pop-up storms could cause isolated travel delays or brief downpours.
5-Day Forecast for Philadelphia (July 5–10):
- Saturday (High 88°F / Low 68°F): Sunny and calm
- Sunday (High 90°F / Low 72°F): Sunny, becoming partly cloudy
- Monday (High 89°F / Low 74°F): Partly sunny, storms after 8 p.m.
- Tuesday (High 89°F / Low 73°F): Showers and thunderstorms after 2 p.m.
- Wednesday (High 89°F / Low 72°F): More storms possible after 2 p.m.
