AccuWeather Alert: Late day storms prompt flash flood concerns in the Philadelphia region

PHILADELPHIA (WPVI) -- A Flood Watch is posted for most of the area starting this afternoon into Monday.

TODAY: Some sun, cloudier, high 92. Heat index values will be between 95-100 degrees.

The best chance for storms will be later in the evening and at night.

Storms could be severe, but we'll have to watch for downpours that can lead to instances of flash flooding.

A Flood Watch goes into effect this afternoon and remains in effect through tomorrow evening. The Weather Prediction Center has placed most of the area under an elevated risk for flash flooding, with a Moderate Risk (level 3 of 4) now in place for parts of the northwest suburbs into the Lehigh Valley.

MONDAY: Much cooler, but the humidity will be high. This will bring an elevated risk for flash flooding concerns with downpours throughout the day, high 80.

TUESDAY: Very muggy and unsettled at times with downpours and plenty of clouds, high 80.

WEDNESDAY: Brighter, and not as humid, high 85.

THURSDAY: More humid with clouds and sun. Watch for an afternoon or evening thunderstorm, high 90.

FRIDAY: Hot again with a late day thunderstorm around, high 91.

SATURDAY: Watching for the chance of a pop-up storm, high 89.