AccuWeather: Downpours could lead to localized flash flooding tonight in the Philadelphia region

PHILADELPHIA (WPVI) -- A Flood Watch is posted for part of the area overnight for the threat of downpours and storms.

TODAY: Clouds and humidity increase, high 83. Dry for outdoor plans.

TONIGHT: Rounds of downpours and storms could lead to localized flash flooding.

With this quick moving system, most places will see 1/2" to 1" of rain. Low 71.

SUNDAY: Lingering downpours early. Skies eventually turn partly sunny. It's humid, but dry for the Eagles game, high 84.

MONDAY: Morning shower to afternoon sunshine. The humidity will drop throughout the afternoon, high 78.

Overnight temperatures dip into the 50s for most, a few upper-40s possible well northwest.

TUESDAY: A beautiful day with sunshine and low humidity, high 78.

WEDNESDAY: Partly sunny, warmer and more humid, high 83.

THURSDAY: Some sun with scattered thundershowers around, high 86.

FRIDAY: Early clouds, then turning brighter, high 84.