Expect temperatures to be back into the mid-upper 80s for many locations around the Delaware Valley on Thursday as the overall weather pattern shifts, bringing more cloud cover and the chance for pop-up showers and storms.

The Philadelphia area is bracing for a scorching heatwave that will see temperatures reach the triple digits with added humidity that will make it feel even hotter.

City officials have declared a heat health emergency in Philadelphia that began Sunday and will continue until Wednesday.