Philadelphia starts Monday with mostly cloudy skies and temperatures in the mid-60s, but the brief calm will not last. The city should reach about 72 degrees this afternoon before rain chances rise sharply Monday night and cooler, unsettled weather settles in for much of the week.
Monday afternoon looks mostly dry and partly sunny, with northeast winds around 10 knots and occasional gusts up to 20 knots. Showers are possible Monday night, with another round of rain likely near or after 00Z Monday night, according to the National Weather Service in Mount Holly; the timing is a wetter update to Sunday’s Hoodline forecast.
Rain Chances Remain Elevated Tuesday
Tuesday could bring periods of rain in Philadelphia, with temperatures struggling to leave the 60s. Northeast winds could be breezy to windy.
Wednesday will remain mostly cloudy with a 30% chance of showers, a high near 65 and northeast winds around 15 mph. Thursday should see lower rain chances, with temperatures remaining in the 60s.
Late-Week Coastal System Could Keep Winds Up
A developing coastal low is expected to bring increasingly windy conditions later in the week, even if the heaviest rain stays away from Philadelphia. Forecasters say the system’s track remains uncertain from Friday onward, but breezy conditions and additional shower chances are possible through the weekend.
Friday brings a chance of showers, with a high of 69 degrees. The weekend forecast remains highly uncertain.
Tidal Flooding Risk Builds Near The Delaware River
The National Weather Service is also watching for multiple rounds of tidal flooding later this week, potentially beginning with Tuesday evening’s high tide. The greatest concern is expected Wednesday and Thursday, when persistent onshore winds and rising astronomical tides could affect tidal waterways, including the Delaware River.
Rain, low clouds and gusty winds are possible from Monday night through Wednesday. For now, Monday afternoon is the best window for outdoor plans before the umbrellas and jackets take over.
