Fog and mist are hanging over Philadelphia this morning, with temperatures sitting in the mid 70s on Tuesday, July 28, 2026. A Flood Watch kicks in at 8 a.m. and runs into Wednesday afternoon, and forecasters say multiple rounds of heavy showers and thunderstorms could bring flash flooding and damaging gusts right as the afternoon and evening commute ramps up.
This Afternoon And Evening
Rain and storms are expected to ramp up through the late morning, with the prime window for stronger storms running from about 2 p.m. to 10 p.m. Gusts could reach 25 mph and highs should top out near 82°F. Any stronger cells could dump an inch or more of rain in a short burst, which will pond on streets and slow buses and commuter traffic.
Flood Watch Details
According to the National Weather Service, the Flood Watch begins at 8 a.m. Tuesday, July 28, 2026 and continues into Wednesday, with the watch possibly extending later into Wednesday evening along and north of I-78. Forecasters warn that rainfall rates of 2 to 3 inches per hour are possible, with widespread totals of 1 to 2 inches and locally higher amounts, with some models showing 2 to 5 inches in spots north of I-78. Flash flooding in urban and poor-drainage areas, as well as in creeks and streams, is possible.
Commute And City Resources
Drivers and riders should plan for slow travel during the afternoon and evening commute and build in extra time for SEPTA buses and regional roads. Standing water and downed branches can close lanes and choke off busy routes in a hurry.
Residents can sign up for ReadyPhiladelphia alerts and other city notifications through the City of Philadelphia, and are reminded to use 311 for non-emergency service requests and 911 for emergencies.
Beaches, Boaters And The Waters
Small craft advisories and gusty southerly winds are expected on bay and ocean waters later Tuesday, and beaches face a moderate rip-current risk. If the surf looks rough, avoid swimming and listen to lifeguard instructions. Small boats should stay in harbor while winds and elevated seas persist.
Stay Informed
Stay alert for Flash Flood Warnings and severe-storm warnings through Tuesday night and into Wednesday, and move to higher ground quickly if water begins to rise. This briefing will be updated if watches or warnings are expanded or upgraded.
