7:00 AM | **Heat wave begins today and continues for a week...likely to be the worst stretch of the summer for the Mid-Atlantic**
Paul Dorian
6-Day Philadelphia Forecast
Today
Mainly sunny, hot and humid, highs near 90 degrees
Tonight
Mainly clear, warm, muggy, lows not far from 70 degrees
Saturday
Mainly sunny, hot, humid, low-to-mid 90’s for afternoon highs
Saturday Night
Mainly clear, warm, muggy, low-to-mid 70’s for overnight lows
Sunday
Mainly sunny, hot, humid, mid-to-upper 90’s
Monday
Mainly sunny, hot, humid, slight chance of showers and thunderstorms late in the day or at night, mid-to-upper 90’s
Tuesday
Mainly sunny, hot, humid, slight chance of showers and thunderstorms, low-to-mid 90’s
Wednesday
Mainly sunny, hot, humid, slight chance of showers and thunderstorms, lower 90's
Discussion
Upper-level ridging will expand and intensify over the Mid-Atlantic region during the next few days and temperatures will respond by climbing to 90 degrees this afternoon and likely well into the 90’s on Saturday, Sunday and Monday - perhaps even a flirtation with the 100 degree mark in some spots. The heat will be accompanied by uncomfortably high humidity levels and there is little, if any, chance of relief from rainfall this weekend which will be nowhere to be found. Indeed, the best place for relief during the next several days of high heat and humidity will be at the beaches where a sea breeze is quite likely to form on a daily basis reducing coastal temperatures considerably compared to inland locations. This high heat and humidity will likely continue for about a week and there will likely be some record highs that fall over this time period. Perhaps even more likely is the possibility that “record warm low” temperatures will be set in the Mid-Atlantic region as some of the upcoming nights later this weekend and early next week will feature only a minimal drop in temperatures.
Meteorologist Paul Dorian
Perspecta, Inc.
perspectaweather.com