Philadelphia is waking to mostly clear skies and temperatures around 66 degrees Sunday morning, but the calm start will not last all day. Mostly sunny conditions should carry the city into midday before showers and thunderstorms become possible after 1 p.m. The high is expected to reach 87 degrees.
The National Weather Service puts the daytime rain chance at 40%, with the best odds during the afternoon and evening. Southwest winds will run from 0 to 10 mph, and any storms could bring brief heavy downpours, gusty winds or small hail, though no watches or warnings are in effect.
Afternoon Storm Chances Build
Hourly rain chances rise from about 20% around 1 p.m. to roughly 40% from midafternoon into early evening. Skies may become cloudier near and northwest of Interstate 95, so outdoor plans could get a little more complicated as the day wears on.
Sunday night stays warm and unsettled, with a 50% chance of showers and thunderstorms and a low near 70 degrees. The forecast calls for mostly cloudy skies and rainfall generally between a tenth and a quarter of an inch, though heavier bursts could occur under a thunderstorm.
Heat And Storms Return For The Workweek
Monday reaches about 87 degrees with a slight chance of showers and thunderstorms, followed by a hotter Tuesday near 92. Wednesday and Thursday remain steamy, with highs around 90 and 89 degrees and daily storm chances reaching 40% to 50%.
The weather service is also warning that the Tuesday-through-Thursday period could bring a greater risk of severe thunderstorms across the region. Damaging winds, large hail and tornadoes are among the hazards forecasters say may need watching, although the exact timing and location of the strongest storms remain uncertain.
Cooler Weather Arrives Friday
Friday brings a modest break from the heat, with a mostly sunny high near 85 and a 30% chance of rain showers. Saturday looks cooler still, topping out around 82 degrees with another chance of showers.
For anyone heading to the Jersey Shore or Delaware beaches Sunday or Monday, forecasters are calling for a low risk of dangerous rip currents. Beachgoers should still check local beach conditions before getting in the water, especially if winds or thunderstorms develop.
