However, meteorologists say a more progressive solution of the cold front and "faster individual storm motions" may limit that threat from being widespread.
While it won't rain throughout the day Sunday, a chance of showers and storms will continue through the afternoon.
Isolated to scattered thunderstorms are expected to develop beginning this afternoon, with the best chance in the Poconos and central and northern New Jersey.
"A few thunderstorms popped up in the afternoon heat, some of which produced very heavy rain over a small area".
Tuesday looks to be quite active with scattered showers and thunderstorms as a cold front approaches from the north and west. Temperatures will stay warm in the upper 80s and lower 90s as well.
Monday will start out partly cloudy with a chance for storms after 2 p.m.as the temperatures climbs to a high of around 88 degrees. Storms that form this week have the potential to become strong with gusty winds, frequent lightning, and heavy rain. Showers and storms are likely each of the next two afternoons, especially Tuesday, before dry, less humid weather sets up through late this week. It will be partly cloudy across the metro with highs in the mid 80 and a light east wind.
Not everyone will see a storm today, in fact, most won't, but those that do may experience drenching downpours that could lead to flooding.
TRI-LAKES: High - 70s; Low - 50s.
Next week will be cooler with highs in the mid 80s.
Sun: High: 95 Low: 72 Mostly sunny.