Expect another steamy day Sunday.
Temperatures will surge to near 90 degrees and the humidity levels will be uncomfortable once again.
The unstable air mass in place and a cold front moving through will spark thunderstorms.
FYI, the Storm Prediction Center has our entire area under a "slight risk for severe storms" -- which means a potential exists for these storms to unleash gusty winds and hail.
Heavy downpours are also likely. In fact, the National Weather Service has issued a Flash Flood Watch for Philadelphia and points North and West. The watch is in effect through late tonight.
SUNDAY
Sun & Clouds
Warm
Humid
Thunderstorms, Some Severe
Winds: SW 5-15 mph
Highs: 85-88 (normal high: 86)