Historical weather data, all-time temperature records, and monthly climate averages for Pottstown, PA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Pottstown sits in that unpredictable shoulder season — average highs of 57° with lows still dipping to 34°. The date has seen wild swings over the years, from a balmy 78° in 1999 to a brutal 13° in 1995. No snow expected today, though rain has a 42% chance of showing up.
Pottstown earns its stripes as a true four-season town — the thermometer has swung from a scorching 106° in July 1999 all the way down to -17° in January 1994, a range of 123 degrees. August 2011 delivered the wettest single day on record at 6.75 inches, while February 1983 buried the area under 23 inches of snow in one storm.
Summer is the headliner here, with highs peaking around 85–87° in mid-to-late July and the wettest stretch of the year arriving right on its heels in late July. Winter bottoms out the second week of January with average highs of just 37°. Spring and fall offer a pleasant middle ground, with April and October sitting in the comfortable 61–65° range.