Philadelphia will begin Saturday with mostly clear skies and temperatures in the mid-60s, but the weather is expected to change overnight. The city could reach about 82 degrees this afternoon before showers and thunderstorms develop, with heavy rain and flooding possible, according to National Weather Service.
Sunny Saturday Turns Stormy Overnight
Saturday afternoon looks partly sunny and warm, with east winds around 5 to 10 mph and only a small chance of rain. Storm chances increase after 9 p.m., with thunderstorms becoming more likely late Saturday night and into the early hours of Sunday.
The National Weather Service has a Flood Watch in effect for Philadelphia from late Saturday night through Sunday morning, as reported by National Weather Service. Some storms could produce 1 to 2 inches of rain in a short period, while the broader forecast calls for roughly three-quarters of an inch to 1 inch of rainfall.
Sunday Morning Could Bring Fog And Flooding
Showers and thunderstorms are expected to continue into Sunday morning, with the greatest concern during the predawn and early morning hours. Patchy fog, reduced visibility, ponding on roads and flooding in low-lying areas could complicate the Sunday morning commute, especially near urban drainage zones and smaller streams, as noted by National Weather Service.
How To Check Mapped Flood Risk
Residents seeking documented flood-hazard information for a Philadelphia property, neighborhood or public facility can consult the Federal Emergency Management Agency's Flood Map Service Center, which FEMA identifies as the official public source for flood-hazard information produced in support of the National Flood Insurance Program.
Rain should taper by late morning, though a slight chance of showers and thunderstorms could linger through noon. Sunday will still be warm, with a high near 83, before conditions turn drier and cooler Sunday night.
Cooler, Calmer Weather Arrives Monday
Monday is forecast to be sunny with a high near 77 and a much cooler low around 56 Monday night. Tuesday should also be sunny near 77, followed by a warmer Wednesday near 83, per a report from National Weather Service.
Thursday could reach 85 degrees with a slight chance of showers after 2 p.m., while Friday stays mostly sunny near 82 with another small chance of afternoon rain. For now, the main weather concern is the overnight storm threat and potential flooding between Saturday night and Sunday morning.
