Heat Wave To Bring 100 Degree Temperatures To Philly Area

EASTERN PA — Temperatures will reach triple digits in the greater Philadelphia area this week, as a potentially lethal heat wave appears likely to break all time heat records on multiple days.

A heat advisory is in place for the entire region from 10 a.m. Tuesday to 6 a.m. Wednesday, and an excessive heat watch has been issued for Wednesday morning through Saturday night. The area could see up to eight consecutive days over 90 degrees.

"The temperature will climb into the mid-90s several days in a row, with the hottest conditions expected during the second half of the week," AccuWeather said. "There won't be much relief from the heat after the sun sets either, as overnight lows will only fall into the mid-70s."

Given the brightness of the sun and the humidity, the heat index will be even higher.

"Heat related illnesses increase significantly during extreme heat and high humidity events," the National Weather Service said.

High temperatures will rise throughout the week, from 90 on Monday to the mid-90s by midweek before breaching 100 degrees on Friday and Saturday.

The forecasted high on several days in Philadelphia is higher than the all time high temperature record for that date. The record high for Friday, June 21 is 99 and was set in 1923. The forecast calls for a high 0f 101 in the city that day.

Below is a glance at the National Weather Service's all time high temperatures for next week:

Authorities issued the following tips to stay cool in hot weather:

• Drink plenty of non-alcoholic, non-caffeinated fluids
• Wear lightweight, light-colored, loose-fitting clothing
• If at all possible, try to get outdoor work completed during the morning to avoid the warmest part of the day
• Keep windows and interior doors open when running a fan at home
• Keep cool by seeking an air-conditioned building if available; if not, seek rest in the shade

Here's the full forecast:

Monday
Mostly sunny, with a high near 90. South wind 10 to 15 mph.

Monday night
Mostly clear, with a low around 70. South wind 5 to 10 mph, with gusts as high as 20 mph.

Tuesday
Sunny, with a high near 94. South wind 5 to 10 mph.

Tuesday Night
Mostly clear, with a low around 73. South wind 5 to 10 mph.

Wednesday
Sunny, with a high near 95. South wind around 5 mph.

Wednesday Night
Mostly clear, with a low around 74.

Thursday
Sunny and hot, with a high near 97.

Thursday Night
Mostly clear, with a low around 73.

Friday
Mostly sunny and hot, with a high near 101.

Friday Night
Partly cloudy, with a low around 75.

Saturday
Mostly sunny and hot, with a high near 100.

Saturday Night
Mostly cloudy, with a low around 76.

Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 95. Chance of precipitation is 30%.