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.
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Summerlike warmth this weekend thru midweek…
Turning notably warmer over the weekend as strong ridging begins to build into the region. Mostly sunny skies are expected Saturday with highs in the lower 80s, then a weak impulse moves through overnight with isolated showers possible. Sunday follows with mostly sunny skies and even warmer with highs reaching the upper 80s.
By early next week, highs are likely to exceed 90 degrees, with peak heating achieved on Tuesday. A cold front approaches the region Wednesday which will bring a threat for scattered PM thunderstorms, but will also bring an end to the well above average temperatures in the days thereafter. Thursday is a transition day with partly to mostly cloudy skies, then slightly cooler than average temperatures are likely heading into Memorial Day weekend.
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Forecaster: Martrich 16 May 0300z
| Average high | Average low | Record high temp (year) | Record low temp (year) |
| 74°F | 54°F | 90°F (1998) | 40°F (1984) |








