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Jstergis CC BY-SA 4.0 Wikimedia Commons

Mount Greylock

Mountain

Western Massachusetts' highest summit, Mount Greylock offers long ridgeline trails, a summit war memorial and Bascom Lodge; hikers and drivers come for panoramic views and Appalachian Trail access.

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In this guide

Mount Greylock essentials

Address: Mount Greylock State Reservation, Williamstown, MA 01267, United States
Website: mass.gov
Admission: State park parking/entry fees may apply; Bascom Lodge accommodation fees vary seasonally.

About Mount Greylock

Mount Greylock is the highest natural point in the U.S. state of Massachusetts and forms the core of Mount Greylock State Reservation. The summit area includes a veterans memorial tower and visitor facilities and is a well-known destination for hikers, drivers, and scenic viewing.

The summit is accessible by a paved auto road in the warmer months and by an extensive network of hiking trails year-round; the Appalachian Trail traverses the mountain corridor. Visitors come for panoramic views that can extend across multiple states on clear days, and for the historic lodge and summit memorial structures.

The mountain is part of a state-managed reservation with trails, picnic areas, and seasonal visitor services. It is located in northwestern Massachusetts within driving distance of several small towns and is a regional recreation hub.

  • State high point: The mountain is the highest point in Massachusetts and offers multi-state panoramic views from clear-sky vantage points at the summit.
  • Long-distance trail: The Appalachian Trail passes near or across the summit area, making it a frequent destination for long-distance hikers as well as day visitors.

What to See#

  • Veterans War Memorial Tower: A stone-and-brick memorial tower at the summit commemorating war veterans and serving as a visible landmark above the treeline.
  • Summit lodge: A historic mountain lodge offering food and overnight accommodation near the summit, operated seasonally and serving hikers and visitors.
Things to Do
When to Go

Best Time to Visit Mount Greylock

Fall is the best time for foliage and clear vistas; summer is good for hiking, while winter offers snow sports with more limited access.

Fall
September-November · 0-15°C (32-59°F)
Brilliant foliage and stable weather make fall the most popular season.
Summer
June-August · 8-24°C (46-75°F)
Warmer weather and open trails for hiking; busy on weekends.
Winter
December-March · -10 to 2°C (14-36°F)
Snowy and windy; winter sports available but travel may be limited.

Weather & Climate near Mount Greylock

Climate

Mount Greylock's climate is classified as Warm-Summer Continental - Warm-Summer Continental climate with mild summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -14°C to 23°C. Abundant rainfall (1368 mm/year), wettest in November, distributed fairly evenly throughout the year.

Air Quality: AQI 24 Good
Temperature & Rainfall
Temperature Range
23°
Warmest Month
-14°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January - -14° - -4° -16° 101 mm - - 4.9 m/s - -
February - -13° - -2° -15° 98 mm - - 5.2 m/s - -
March - -8° - 3° -8° 110 mm - - 5.2 m/s - -
April - -2° - 9° 0° 117 mm - - 4.8 m/s - -
May - 5° - 17° 11° 124 mm - - 4.2 m/s - -
June - 9° - 21° 15° 118 mm - - 3.6 m/s - -
July - 12° - 23° 18° 116 mm - - 3.4 m/s - -
August - 12° - 22° 17° 121 mm - - 3.0 m/s - -
September - 7° - 18° 13° 108 mm - - 3.3 m/s - -
October - 2° - 12° 4° 108 mm - - 3.9 m/s - -
November - -4° - 6° -3° 129 mm - - 4.5 m/s - -
December - -10° - -1° -11° 118 mm - - 4.8 m/s - -
Getting There & Around

How to Get to Mount Greylock

Mount Greylock State Reservation is reached by Route 7A/102 in Williamstown, Massachusetts. The summit auto road (Seasonal) leads toward the Veterans War Memorial Tower; public parking and trailheads are available near the visitor centers. The nearest train/bus hubs are North Adams and Pittsfield; local bus service is limited.

Tips for Visiting Mount Greylock

  • Drive the auto road (if open) for fast summit access, but walk some trails - the best views are earned on foot.
  • Sunset and dawn are spectacular - plan an overnight if sunrise clouds often fill the valleys.
  • Visit the historic Bascom Lodge (if open) to get a sense of the mountain's CCC-era architecture and park history.