Our East Central PA forecast region includes the Lehigh Valley, Hamburg, Reading, Lebanon, Harrisburg, Pottsville & surrounding areas. Forecasts are updated daily M-F, and Saturday that covers both weekend days – never on Sundays.

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Cooler today thanks to a backdoor cold front...

A backdoor cold front will be southwest of the region Friday, leading to a much cooler easterly/marine flow and mainly cloudy skies, and temperatures not escaping the lower 70s. A stray shower is possible in a few spots, but most areas remain dry. The front returns northward as a warm front Friday night, leading to a few late night showers as it moves through.

Warmer temperatures are expected over the weekend on the opposite side of that warm front, and clouds in the morning will give way to a mix of sun and clouds in the afternoon. A weak cold front will approach Saturday afternoon, and a quick line of thunderstorms could move through late afternoon and early evening. A dry Sunday follows with that cold front boundary stalling off to our south, then PM thunderstorms will be possible Monday as that boundary shifts a bit farther to the north. A cold front will follow Tuesday with more numerous scattered showers and thunderstorms likely, then mostly sunny with lower humidity in its wake both Wednesday and Thursday. 

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Forecaster: Martrich 27 June 0300z

Daily Climatology for Allentown, PA