A forecast for above-90 temperature and high humidity prompted the City of Philadelphia to issue an excessive heat warning for Monday and Tuesday, and to institute home visits to the elderly and other precautions aimed at preventing illness and death."We strongly urge the public to visit older friends, relatives and neighbors to ensure that air-conditioners or fans are working and homes are adequately ventilated. In a heatwave, the majority of the victims are older people and those with pre-existing medical conditions," said Philadelphia Health Commissioner Donald Scwhwarz. The National Weather Service said temperatures would be in the 90s Monday and Tuesday, but are expected to drop into the 80s Wednesday, and into the high 70s Thursday and Friday. Normal high temperature for this time of year is about 77 degrees.
