Historical weather data, all-time temperature records, and monthly climate averages for Overbrook, PA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Overbrook tends to feel like spring is finally committing — the average high hits 62° with lows around 43°. But the date has a wide range: it reached 80° as recently as 2023, and dipped to a frosty 29° back in 2016. There's about a 1-in-3 chance of rain today, though snow is essentially off the table.
Overbrook has seen some serious weather extremes over the past three decades — from a brutal -5° in January 1994 to a scorching 104° in July 1999, a swing of over 100 degrees. The wettest single day on record dropped 7.5 inches of rain in September 2004, and the snowiest delivered 24 inches in a single January 1996 storm.
Summer is the main event here, with highs averaging 91° during the peak week of mid-July and staying in the upper 80s through August. If you're cold-averse, avoid January and February, when highs hover around 40-45°. July is also the wettest stretch of the year, averaging nearly 1.4 inches of rain in a single week.