Philadelphia, Pennsylvania – An Air Quality Alert is in effect for the region as a stubborn, dreary weather pattern sets up a week of uncertainty for Philadelphia. Residents can expect persistent cloud cover and slight chances for showers to start the work week before a significant heatwave builds just in time for the Juneteenth holiday.
The week begins under mostly cloudy skies with a chance of showers lingering from the weekend. According to the National Weather Service, Monday will bring a high temperature of 73 degrees with a 20 percent chance of rain. Those with respiratory sensitivities should continue to monitor air quality conditions and limit time outdoors.
The unsettled pattern holds firm into Tuesday, with mostly cloudy skies and a high of 79 degrees. Again, a slight chance of showers is possible, primarily after 2 p.m. While these showers are not expected to be widespread, they could pop up with little notice across the Delaware Valley. Travel along major routes like I-95 and the Schuylkill Expressway may see intermittent damp conditions.
A major shift arrives mid-week. Wednesday will be partly sunny with a high of 87 degrees, but the real heat builds for Juneteenth on Thursday. Temperatures are expected to soar to near 91 degrees under mostly sunny skies. This heat and humidity will also fuel a 50 percent chance for afternoon showers and thunderstorms, potentially disrupting outdoor celebrations.
The week ends on a calmer, sunnier note, with a high of 85 degrees expected for Friday. Residents should stay hydrated as temperatures climb and keep an eye on the sky for developing storms later in the week.
Five-Day Outlook for Philadelphia
- Sunday: Mostly cloudy with a chance of showers; high near 70°F.
- Monday: A slight chance of showers, otherwise mostly cloudy; high near 73°F.
- Tuesday: Mostly cloudy with a slight chance of showers after 2 p.m.; high near 79°F.
- Wednesday: Partly sunny with a chance of showers after 8 p.m.; high near 87°F.
- Thursday (Juneteenth): Mostly sunny with a chance of afternoon thunderstorms; high near 91°F.
