Fall colors may be less vibrant in Pittsburgh this year

Zoom in: Peak foliage in Southwestern Pennsylvania arrives in mid-October, with the most vibrant colors expected between Oct. 6 and Oct. 20.

Yes, but: AccuWeather forecasts a mixed fall foliage season. While parts of the East may see brilliant colors, large stretches of the Smoky Mountain and Appalachian regions, including Pittsburgh, are expected to look duller than usual.

• Experts say heavy spring and early summer rains may have fueled insect outbreaks and fungal damage, leading to muted colors and early leaf drop.
• The historic dry spell that followed placed additional stress on trees, causing some to turn earlier than usual this year.

Threat level: Scientists say climate extremes are expected to play a growing role in the timing, duration, and vibrancy of fall foliage in the coming decades.

The bottom line: There will still be plenty of reds, yellows, and oranges to see in Pennsylvania. Here are some must-see spots to catch fall's fiery colors.