Triple Digit Heat, Storms Target Eastern PA In Weekend Forecast

EASTERN PA — The heat index will soar over 100 degrees throughout the greater Philadelphia region over the weekend as another round of severe storms targets the area, forecasters said.

Scattered thunderstorms may arrive during the evening hours Friday, and are most likely between 9 p.m. and 4 a.m.

"A few instances" of damaging winds and floods are possible in areas directly hit by thunderstorms, though areas farther west and north of the five county Philadelphia area are more likely to receive severe impacts, the National Weather Service said.

Another round of showers will hit Saturday morning before 11 a.m., and then there will be a brief window where thunderstorms may arrive between 11 a.m. and 2 p.m. Rain is then possible the remainder of the day, and the chance for it will continue throughout the night Saturday before moving out by Sunday.

The heat, however, will be widespread over the next several days, with temperatures in the mid 90s and a heat index of 103 forecasted for both Friday and Saturday.

Here's the full forecast:

Friday
A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 94. Heat index values as high as 103. Southwest wind 5 to 10 mph. Chance of precipitation is 20 percent.

Friday Night
A chance of showers and thunderstorms, mainly between 9 p.m. and 4 a.m.. Mostly cloudy, with a low around 78. South wind around 5 mph. Chance of precipitation is 40 percent. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday
A chance of showers before 11 a.m., then a chance of showers and thunderstorms between 11 a.m. and 2 p.m., then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 94. Heat index values as high as 103. Southwest wind 5 to 10 mph. Chance of precipitation is 60 percent. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday Night
Showers likely and possibly a thunderstorm before 8 p.m., then a chance of showers and thunderstorms after 8 p.m. Mostly cloudy, with a low around 75. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60 percent. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday
Partly sunny, with a high near 92. Calm wind becoming west around 5 mph in the afternoon.

Sunday Night
Mostly cloudy, with a low around 74.

Monday
Partly sunny, with a high near 93.

Monday Night
Mostly cloudy, with a low around 73.

Tuesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 91. Chance of precipitation is 40 percent.

Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 50 percent.

Wednesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 89. Chance of precipitation is 40 percent.

Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 40 percent.

Thursday
A chance of showers. Partly sunny, with a high near 87. Chance of precipitation is 40 percent.