Colorado fall foliage shifts to lower elevations in 2026

In 2026, Colorado's fall foliage arrived earlier than usual due to a hot, dry summer and moderate drought conditions. High-elevation areas, such as Rocky Mountain National Park and the Peak to Peak Highway, saw peak colors between mid-September and early October.

As of mid-October, travelers are advised to focus on lower elevations to find peak colors. Areas around 6,000 to 8,000 feet, including the Front Range, river corridors, and foothills, are expected to maintain color through late October.

In Boulder, lower-elevation trees like cottonwoods and maples extend the season. The city's strongest viewing period typically falls between October 5 and October 20. Notable locations for viewing include the Mapleton Hill neighborhood and Wonderland Lake, which offer accessible ways to experience autumn colors without traveling to high-mountain peaks.