The Berkshires are western Massachusetts's answer to a New England foliage weekend without a full day of driving to get there — close enough to Boston and New York for a genuine three-day trip, hilly enough for real color, and small enough that Lenox, Stockbridge and the Mount Greylock summit are all within about 25 minutes of each other. The towns themselves are part of the appeal: this is Gilded Age cottage country, where Edith Wharton built her own house and the Vanderbilts and their circle summered, and the architecture and gardens from that period are still the backbone of what there is to see.
Fall here is quieter than Tanglewood's famous summer season — the Boston Symphony Orchestra's outdoor season at Tanglewood runs through early September and is over well before peak foliage, so don't plan a fall weekend around a concert there. What replaces it is slower: house-museum tours at their own pace, the drive up Mount Greylock, and long dinners in Lenox and Stockbridge village centers without a summer crowd competing for the table.
Peak color in Berkshire County typically lands in the first half of October, and because the region has real elevation change — the valley towns sit around 1,000 feet, Mount Greylock's summit at 3,491 feet — the season here runs longer than in a flatter place: color moves down the mountain over roughly two weeks, so a visit any time from late September through mid-October will find some real color somewhere in the county.
How to use thisThree days, one anchor each, with an easy backup for each. Berkshire County's peak color window (roughly October 4–15 most years) is also its busiest lodging window — book Lenox or Stockbridge rooms well ahead, and expect Columbus Day weekend specifically to be the tightest. House-museum hours shorten as the season goes on, so check the specific property's site for your date rather than assuming summer hours still apply.