Grab my free Fall Foliage Guide at the 🔗 in my bio with 5 of my favorite destinations the exact weeks to visit each. Pennsylvania’s colors are already changing thanks to cooler nights, and here’s when foliage usually peaks by region (based on DCNR history which despite the leaves already turning this year is usually very accurate): Northern PA → 1st–2nd week of October Central PA → 2nd–3rd week of October Western PA → 2nd-3rd week of October Southern PA → 3rd–4th week of October Southeastern PA