Weir Farmfall foliage
No reports yet this season for Weir Farm National Historical Park.
Next 7 days
No frost, strong wind or heavy rain in the forecast.
National Weather Service forecast, issued Mon 3:09 PM (Eastern). Frost: a low of 36°F or less; wind: 20 mph or more; rain: 60% chance or more.
Frost near Weir Farm National Historical Park
First frost usually in ~2 weeks
Oct 14Average first fall frost
May 1Average last spring frost
The day a 32°F night is as likely as not, 1991–2020, at NOAA's Danbury Municipal Airport station (8.1 mi away, 453 ft). Source ↗ (opens in a new tab)
Weir Farm National Historical Park through the year
- Buildings and tours open (2026 season)NowMay–Oct
- High humidityJul–Aug
- Foliage season, mid-September to mid-to-late OctoberNowSep–Oct
Best spots around Weir Farm National Historical Park
- Weir PondA recreation spot and artists' subject for more than 100 years; Truants' Meadow is on the way
- Sunken GardenCommissioned by Cora Weir Burlingham; a defining feature of the farm's landscape
Trees this fall (Sep 15–21). Across New England, red maple is ahead of a typical year; the rest are close to typical. Which trees turn when →
Weir Farm in pictures

How we know
National Park Service, Weir Farm park data (opens in a new tab) (Sep 28) · National Park Service, Weir Farm basic information (opens in a new tab) (Sep 28) · National Park Service, Weir Farm places (opens in a new tab) (Sep 28) · National Weather Service forecast and alerts (opens in a new tab) (Sep 28) · USA National Phenology Network, colored leaves observations (opens in a new tab) (Sep 28) · NOAA NCEI U.S. Climate Normals 1991–2020 (annual/seasonal) (opens in a new tab) (Sep 27)
Questions people ask
When is peak fall foliage in Weir Farm National Historical Park in 2026?
The National Park Service says foliage season runs from mid-September to mid-to-late October (a season, not a peak): Sep 15–Oct 25. That's general timing for this place, not a peak date or a forecast.
How is the fall color in Weir Farm National Historical Park right now?
There's no official report yet this season.
Can I visit when the buildings are closed?
Yes: the grounds, trails and parking lot are open every day of the year, sunrise to sunset.Source: National Park Service, Weir Farm basic information ↗ (opens in a new tab)
What should groups know about parking?
Parking is limited: carpool if you can, and groups arriving in more than two cars must make a reservation.Source: National Park Service, Weir Farm basic information ↗ (opens in a new tab)
Can I bring my dog?
Yes, as long as it stays on a leash; please clean up after it.Source: National Park Service, Weir Farm basic information ↗ (opens in a new tab)
Where are the best spots in Weir Farm National Historical Park?
Weir Pond: a recreation spot and artists' subject for more than 100 years; Truants' Meadow is on the way; Sunken Garden: commissioned by Cora Weir Burlingham; a defining feature of the farm's landscape.
What is Weir Farm National Historical Park like through the year?
Buildings and tours open (2026 season) (May–Oct), High humidity (Jul–Aug) and Foliage season, mid-September to mid-to-late October (Sep–Oct).