Southeast PA Forecast
Our southeast PA forecast region includes Philadelphia, Doylestown, West Chester, Lancaster, York, Gettysburg & surrounding areas. Forecasts are updated daily M-F and Saturday that covers both weekend days – not Sunday.
Oppressive weekend period expected with dangerous heat and heat index values both Saturday and Sunday…
A strong ridge over the NE US will flex Friday through the weekend with upper 90s to near 100° air temperatures expected both days, and very high heat index values between 110-115° with the worst heat index values found on Saturday. Saturday will be partly cloudy and hazy, and muggy and warm temperatures follow overnight. A partly cloudy Sunday follows with upper 90s to near 100° once again, with a stray late day t-storm possible.
Variably cloudy on Monday with scattered t-storms possible that will keep temperatures in check as a cold front moves through, and then we can all breathe a sigh of relief by Tuesday with partly cloudy skies, refreshing temperatures, and much lower humidity. The lower humidity theme continues Wednesday through Friday with mostly sunny skies expected, and only a slight moderation in temperatures by the end of the week.
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Forecaster: Martrich 20 July 0300z
Daily Climatology for Philadelphia, Pa
| Average Temp: | Record Temp: | |
| High: | 87 | 99 (1930) |
| Low: | 70 | 57 (1890) |
