Weather Authority: Heat Advisory Wednesday; PM thunderstorms

The Philadelphia area is slated for another hot and humid day Wednesday with some afternoon thunderstorms.

A Heat Advisory is in effect through 8 p.m. Temperatures will reach a high of around 92 degrees. The Heat Index will be closer to 100 degrees. 

The National Weather Service issued a Severe Thunderstorm Warning for Montgomery, Chester and Berks counties until 4:08 p.m. Wednesday. 

Partly to mostly cloudy skies are expected ahead of afternoon storms, a few of which may be severe.

Relief from high temperatures is expected this weekend, with temperatures hovering around 80 degrees.

For the latest forecast and location-based severe weather alerts, download the FOX 29 Weather Authority app.

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WEDNESDAY: PM thunderstorms. High: 92 Low: 74

THURSDAY: Mostly sunny. High: 92 Low: 70

FRIDAY: Mostly sunny. High: 80 Low: 63

SATURDAY: Mostly sunny. High: 80 Low: 63

SUNDAY: Mostly sunny. High: 79 Low: 63