As of late September 2026, no official fall foliage forecast for Pennsylvania has been released by state agencies or major foliage-tracking organizations. The Pennsylvania Department of Conservation and Natural Resources (DCNR) typically publishes weekly fall foliage reports starting in late September or early October, but no 2026 report is currently available.
Fall foliage color in Pennsylvania is influenced by temperature, precipitation, and daylight. According to Penn State Extension, warm, sunny days and cool nights (but above freezing) promote the most vibrant red and purple colors. Drought or excessive rain can dull colors or cause early leaf drop.
Without a verified forecast, residents and visitors should monitor the DCNR's official fall foliage website for weekly updates once the season begins. Historically, peak foliage in northern Pennsylvania occurs in early to mid-October, while southern areas peak later in October.
