AccuWeather Alert: Heat index topping 100 degrees this weekend in Philadelphia region

PHILADELPHIA (WPVI) -- The steamy conditions continue Sunday with highs in the upper 90s and heat indices above 100 degrees possible.

TONIGHT: A spotty evening thunderstorm. Otherwise, it stays very warm and muggy, low 76.

SUNDAY: Another scorcher! It's a breezy day with partly sunny skies and plenty of humidity in the air, high 97. Heat index values will be between 100-105.

Scattered thunderstorms and downpours will be possible during the afternoon and evening. Some storms can become severe with downpours, strong winds and hail possible.

There will also be a high risk for rip currents at the Jersey shore, so beachgoers in places such as Surf City, Atlantic City, Ocean City and Cape May need to be extra careful in the water.

MONDAY: Partly sunny and breezy, high 90. A spotty thunderstorm can't be ruled out. Humidity levels will be dropping throughout the day.

TUESDAY: It's finally more comfortable with lower humidity. Temperatures remain warm, high 90.

WEDNESDAY: Hot and more humid with a late day thunderstorm possible, high 94.

THURSDAY: Clouds, some sun. A pop-up thunderstorm is possible, high 88.

FRIDAY: Sunny and less humid, high 86.

SATURDAY: Partly sunny and seasonable, high 87.