AccuWeather: Humid with a late day storm in the Philadelphia region

Karen Rogers Image
Monday, August 17, 2026 10:37AM
AccuWeather: Warm start to the work week in the Philadelphia region
Temperatures climb back to near 90 degrees Monday.
WPVI

PHILADELPHIA (WPVI) -- August heat continues with temps near 90 the next few days.

MONDAY: Overnight rain sparked flash flooding. Much of the day is partly sunny with tropical humidity. Watch for some late day storms that could interrupt the Phillies game. High near 90.

TUESDAY: Sun, patchy clouds. Turning less humid later in the day, high 90.

WEDNESDAY: Humidity isn't terrible. It's hot and mostly sunny, high 91.

THURSDAY: Watching for the chance of scattered thunderstorms, high 86.

FRIDAY: Partly sunny and not as warm, high 83.

SATURDAY: Clouds, some sun. Showers possible, high 83.

SUNDAY: Some sun. Showers possible, high 84.

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