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Trough axis settles in for several days;
cooler than average through midweek
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East Central PA Forecast

Basic CMYK

Our east central PA forecast region includes Allentown, Hamburg, Reading, Lebanon, Harrisburg, Pottsville & surrounding areas. Forecasts are updated daily M-F and Saturday that covers both weekend days – not Sunday.


Trough settles directly over the region today… warmer and more humid beginning Thursday through the weekend…

A trough will be fully entrenched over the region today, which will allow temperatures to remain slightly below normal, with highs only reaching a comfortable middle-70s today. It will be a partly cloudy day, and a slight chance exists to see a pop-up afternoon shower, but we only listed a 20% chance for that to occur. Partly cloudy and for the second straight night, you can leave the windows open and give the air conditioner a rest, as comfortable conditions are expected overnight.

Wednesday will also be under the influence of the same trough as today, but we’ll start to moderate a bit as the trough begins to lose its influence. Winds shift to the southwest on Thursday and a ridge attempts to build into the region through the weekend, but it will also be unsettled a few of those times with a couple of fast moving systems moving well north of the region, that will drag a few boundaries through this area. Right now it doesn’t look like it’s raining the entire time, and favors afternoon/evening scattered storms, but most notably and the best chance exists on Sunday. Every other occurrence looks to be isolated at best Friday and Saturday.

Forecaster: Martrich 27 June 0200z

Daily Climatology for Allentown, PA

Average Temp:Record Temp:
High:83100 (1966)
Low:6149 (2004)

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