Mostly Sunny, Very Mild Monday in Philadelphia Region

Here's the weather forecast for the week ahead

Published on Mar. 9, 2026

Got story updates? Submit your updates here. ›

The Philadelphia region is expected to see mostly sunny skies and mild temperatures on Monday, with highs reaching the low 70s. The warm weather will continue through Tuesday and Wednesday, with highs in the mid to upper 70s, before a strong cold front moves in on Thursday, bringing rain, a potential wintry mix, and a sharp drop in temperatures.

Why it matters

The Philadelphia region's weather patterns can have a significant impact on daily life, from outdoor activities to energy usage. This forecast provides residents with valuable information to plan their week accordingly.

The details

Monday's forecast calls for mostly sunny skies, with light winds and temperatures above seasonal norms. Tuesday and Wednesday will be very warm, with highs in the mid to upper 70s, potentially tying or breaking a record high on Wednesday. However, a strong cold front will move in on Thursday, triggering rain, a few rumbles, and a potential wintry mix in the Poconos, Lehigh Valley, and upper Pennsylvania suburbs. Temperatures are expected to plummet 20-30 degrees between Wednesday afternoon and Thursday afternoon, with Friday struggling to reach 50 degrees.

  • Monday's sunrise is at 7:22 a.m.
  • Tuesday and Wednesday will be very warm with highs in the mid to upper 70s.
  • The old record high on Wednesday is 74, set in 2021.
  • By Thursday, a strong cold front crosses the area, and temperatures plummet 20-30 degrees between Wednesday afternoon and Thursday afternoon.
  • 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.

The players

Philadelphia region

The metropolitan area surrounding the city of Philadelphia, including parts of Pennsylvania, New Jersey, and Delaware.

Got photos? Submit your photos here. ›

The takeaway

This weather forecast highlights the region's shifting weather patterns, from the mild and sunny start to the week to the potential for a sharp temperature drop and wintry mix later in the week. Residents should stay informed and prepared for the changing conditions to ensure they can plan their activities and manage their energy usage accordingly.