A summer-like warmup is taking hold across Philadelphia through Wednesday before a strong cold front brings a sharp change late in the week with much cooler air settling in for the weekend.
Tuesday will be mostly sunny and warm with a high of 80 degrees.
Wednesday stays warm and humid with partly sunny skies and a high near 83 degrees while a spotty shower cannot be ruled out as a front edges closer.
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Thursday brings a noticeable change with sunshine returning, humidity dropping and temperatures falling to around 68 degrees.
Friday starts with a chance for showers as a stronger cold front moves through with highs near 75 degrees before much colder air arrives.
The weekend will feel more like November with gusty winds and temperatures dropping into the 50s which will be a sharp contrast to the summer-like warmth early this week.