Historical weather data, all-time temperature records, and monthly climate averages for Shiloh, PA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Shiloh runs the full gamut — the date has seen an 81° scorcher back in 2011 and a brutal 18° low in 2013, a 63-degree swing on the same calendar day. Expect something in between: average highs of 61° and lows of 38°, with a better-than-even 57% chance of rain.
Shiloh's weather has real teeth at both ends — a 100° peak in July 2011 and a jaw-dropping -16° in January 2025 give this location a 116-degree range of recorded temperatures. A single day in September 2021 dropped 6.59 inches of rain, a reminder that late-summer storms here aren't messing around.
Summer is the main event in Shiloh, with highs peaking around 87° in mid-to-late July and the wettest stretch of the year falling right on its heels in late July. If you're avoiding heat and humidity, the sweet spots are May (73°) and September (77°) — comfortable highs with lower rain averages. Winter is cold but not brutal on average, with January highs sitting around 40°, though that -16° record proves outliers are possible.