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.

TONIGHT: Steady rain develops overnight. Some areas could see a quick 1-2" of rain which may lead to runoff and localized flash flooding. A few thunderstorms are also possible, although the severe weather risk overnight remains low.

SUNDAY: It's a wet start to the day with rain exiting the city during the morning. Some showers may linger near the coast until lunchtime. The afternoon is drier, but it remains muggy with some sunshine breaking through, high 84.

MONDAY: Turning less humid with clouds and sunshine, high 78.

TUESDAY: A cool start to the day! Temperatures dip into the 50s for most including the city. A few upper 40s are possible well northwest. Temperatures are seasonable with plenty of sunshine, high 78.

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

THURSDAY: Partly sunny with an isolated storm possible, high 86.

FRIDAY: Clouds, some sun. Watching for the chance of a shower, high 84.

SATURDAY: Nice and comfortable with clouds and sunshine, high 80.