Philadelphia/ Weather & Environment

Philly Basks in Sun Before Pop-Up PM Storms Crash the Party

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Published on August 24, 2026
Philly Basks in Sun Before Pop-Up PM Storms Crash the PartySource: Google Street View

Philadelphia is waking up to mostly clear skies and temperatures around 66 degrees Monday morning, with a calm start before a warm afternoon. The city should climb to near 82 under mostly sunny skies, but isolated showers and thunderstorms could pop up after 3 p.m.

Sunny Afternoon, Brief Storm Risk

Winds will shift from light west to southwest, reaching 5 to 10 mph during the afternoon. The rain chance is only about 20%, so most neighborhoods should stay dry, though a passing storm could bring a quick downpour or cloud-to-ground lightning, according to the National Weather Service.

Clearer Skies Return Tuesday

Any isolated storms Monday should wind down before 7 p.m., followed by mostly clear skies and a low around 63. Tuesday looks quieter and sunny, with a high near 82 and west winds of 5 to 10 mph, while Wednesday warms to about 86.

Stormier Pattern Arrives Thursday

Thursday brings the week’s bigger weather turn, with showers and thunderstorms likely and a high near 86. The unsettled pattern could continue into Friday, when storms have a 40% chance, before Saturday returns to mostly sunny weather and another high near 86.

There are no active watches or warnings for Philadelphia. Anyone heading outdoors Monday afternoon should keep an eye on the sky and head inside if thunder rolls in.