Philadelphia/ Weather & Environment

Sunny Reprieve: Philly Basks in Midweek Warmth Before Showers Return

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Published on September 30, 2026
Sunny Reprieve: Philly Basks in Midweek Warmth Before Showers ReturnSource: Google Street View

Philadelphia is waking up Wednesday to cloudy skies and temperatures around 66 degrees, but the gray start will not last. Patchy fog may develop early before giving way to a mostly sunny afternoon with a high near 78.

Fog Gives Way To A Warm, Quiet Afternoon

The National Weather Service expects the early fog to lift as high pressure builds over the region. Winds should stay light, rain is not expected Wednesday, and temperatures will remain mild before skies turn mostly cloudy overnight with a low near 63.

Thursday will be warmer, with partly sunny skies and a high near 80. Friday is shaping up as the week’s warmest day, reaching about 84 degrees under mostly sunny skies, with only a small chance of daytime rain.

Showers Return For Weekend Plans

The weather pattern turns unsettled Friday night as a cold front brings a chance of showers after 8 p.m. The chance of rain is around 40%, while temperatures dip to about 60 overnight.

Saturday could start with a few showers before 8 a.m., then turn partly sunny with a high near 71. Sunday looks cloudier and cooler, with a 40% chance of showers and a high near 67; conditions should dry out Monday, followed by sunny skies and a high near 60 Tuesday.

No watches, warnings or advisories are in effect for Pennsylvania in the latest forecast. For updated local conditions, the National Weather Service office in Mount Holly continues to monitor the weekend system.