Philadelphia/ Weather & Environment

Philly’s Last Summer Sizzle Before Showers Soak the Weekend

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Published on October 01, 2026
Philly’s Last Summer Sizzle Before Showers Soak the WeekendSource: Google Street View

Philadelphia is starting Thursday under mostly cloudy skies, humid air and temperatures in the mid-60s, with a south wind around 12 mph. Clouds should gradually thin as the day goes on, sending temperatures up to about 81 degrees for a warm start to October.

Friday Brings The Week’s Warmest Air

Friday looks like the warmest day in the forecast, with mostly sunny skies and a high near 85 degrees. Southwest winds will run 5 to 10 mph, but showers could develop late Friday afternoon, especially north and west of Interstate 95, before spreading across the city Friday night.

The rain should be light overall, with less than a tenth of an inch expected in most spots. Friday night temperatures will fall to around 60 degrees as winds turn northwest.

Weekend Turns Cooler And More Unsettled

Saturday may start with a brief shower chance before 8 a.m., followed by mostly sunny skies and a cooler high near 71. Sunday looks less cooperative, with a 50% chance of showers after 8 a.m., mostly cloudy skies and a high near 67.

That makes Saturday the better bet for outdoor plans, while Sunday could bring the weekend’s more persistent rain risk. The National Weather Service’s latest forecast shows no watches, warnings or advisories in effect for the Philadelphia area.

Clearer Skies Return Next Week

Monday should be partly sunny with a high around 70, followed by a mostly clear night and a low near 48. Tuesday and Wednesday look sunny, with highs near 60 and 64, respectively, according to the National Weather Service.