Foggy Tuesday Morning in Philadelphia Region, Tracking Storms Later This Week

Here's the latest weather forecast for the Philadelphia area.

Published on Mar. 10, 2026

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The Philadelphia region is expected to see dense fog on Tuesday morning, which could lead to flight delays. However, skies will clear and temperatures will reach the mid to upper 70s throughout the day. The warm weather will continue on Wednesday, but a strong cold front is expected to move in on Thursday, bringing rain, a potential wintry mix, and a significant drop in temperatures.

Why it matters

Foggy conditions in the morning can impact travel and commute times, while the approaching cold front and wintry mix could disrupt daily activities and cause hazardous driving conditions in some areas. The dramatic temperature swing from Wednesday to Thursday is also noteworthy and could impact energy usage and outdoor activities.

The details

A dense fog advisory is in effect for most of the Philadelphia region until 10 a.m. on Tuesday. Highs will reach the mid to upper 70s, except along the Jersey Shore where temperatures will hover in the 50s. Tuesday and Wednesday will be warm, with highs in the mid to upper 70s. However, on Wednesday, clouds will increase ahead of a strong cold front to the west. By Thursday, the cold front will cross the area, triggering rain and a few rumbles. The cold air arriving with the front may be cold enough for rain changing to a wintry mix for the Poconos, Lehigh Valley, and the upper Pennsylvania suburbs. Temperatures are expected to plummet 20-30 degrees between Wednesday afternoon and Thursday afternoon, with Friday struggling to reach 50 degrees.

  • Tuesday morning until 10 a.m.: Dense fog advisory in effect for the Philadelphia region.
  • Tuesday: Highs reaching mid to upper 70s, except along the Jersey Shore where temperatures will hover in the 50s.
  • Wednesday: Mild temperatures, with highs in the mid to upper 70s and increasing clouds in the afternoon.
  • Thursday: Strong cold front crosses the area, triggering rain, potential wintry mix, and a significant drop in temperatures.
  • Friday: Temperatures struggle to reach 50 degrees.

The players

Philadelphia region

The metropolitan area surrounding the city of Philadelphia, Pennsylvania.

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The takeaway

The Philadelphia region is facing a significant weather pattern shift this week, with a foggy start on Tuesday giving way to warm temperatures, followed by a strong cold front on Thursday that could bring hazardous conditions and a dramatic temperature drop. Residents should be prepared for potential travel disruptions and changes in their daily routines due to the changing weather conditions.