August 18, 2015
Temperatures will rise into the 90s again today - extending this fourth heat wave of the summer to a fourth day. It will feel stickier than Monday, too, with humidity a bit higher.
The temperature at noon was 86 degrees at Philadelphia International Airport with 55 percent humidity, with a heat index of 89, according to the National Weather Service. The mercury will rise to near 93 degrees this afternoon. There's a chance of isolated showers and thunderstorms overnight.
The heat wave ends Wednesday, with high temperatures only expected to reach the high 80s. Isolated showers, then scattered showers and thunderstorms, are possible after 8 a.m.
A heat advisory is in effect Tuesday in Camden County, from noon to 7 p.m.
The nonprofit Philadelphia Corporation for Aging encourages seniors to drink plenty of water; avoid caffeine and alcohol; wear loose, light-colored clothing and avoid the sun. Seniors are advised to turn on their air-conditioning units and seek help if they experience lightheadedness, heat cramps, heavy sweating, thirst, faintness, confusion or nausea.
The Department of Environmental Protection has issued an air quality health advisory through midnight Tuesday, warning that air quality within the region may approach or exceed unhealthy standards.
Here’s the extended forecast from the weather service:
Today:
Mostly sunny, with a high near 93. Light south wind increasing to 5 to 10 mph in the morning.
Tonight:Isolated showers and thunderstorms between 1 a.m. and 4 a.m., then isolated showers after 4 a.m. Mostly cloudy, with a low around 74. South wind 3 to 8 mph. Chance of precipitation is 20 percent.
Wednesday:
Isolated showers, then scattered showers and thunderstorms after 8 a.m. Mostly cloudy, with a high near 87. South wind 5 to 13 mph. Chance of precipitation is 30 percent. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night:
Scattered showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 74. Southeast wind 7 to 10 mph. Chance of precipitation is 30 percent. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.Thursday:
Scattered showers and thunderstorms. Mostly cloudy, with a high near 86. Southeast wind 8 to 14 mph. Chance of precipitation is 50 percent. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night:
Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 71. Chance of precipitation is 70 percent. New rainfall amounts between a quarter and half of an inch possible.
Friday:
Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rain. Mostly cloudy, with a high near 83. Chance of precipitation is 60 percent.
Friday Night:
Mostly cloudy, with a low around 68.
Saturday:
Partly sunny, with a high near 84.
Saturday Night:
Mostly cloudy, with a low around 68.
Sunday:
Partly sunny, with a high near 84.
Sunday Night:
Mostly cloudy, with a low around 68.
