Williamstown, VT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Williamstown, a community in Orange County, Vermont.
Tonight
39°F
Partly Cloudy
Partly cloudy, with a low around 39. North wind 3 to 7 mph.
7-day forecast for Williamstown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 39°F | Partly Cloudy | 3 to 7 mph N | 0% |
| Saturday | 64°F | Sunny | 3 mph N | 0% |
| Saturday Night | 41°F | Mostly Cloudy then Chance Light Rain | 0 to 6 mph SE | 44% |
| Sunday | 59°F | Light Rain | 8 mph SE | 91% |
| Sunday Night | 44°F | Light Rain then Slight Chance Rain Showers | 0 to 5 mph NE | 91% |
| Monday | 62°F | Mostly Sunny | 3 to 7 mph N | 0% |
| Monday Night | 40°F | Mostly Cloudy | 1 to 7 mph N | 1% |
| Tuesday | 64°F | Partly Sunny | 3 mph NE | 1% |
| Tuesday Night | 38°F | Partly Cloudy | 0 to 3 mph NE | 1% |
| Wednesday | 65°F | Mostly Sunny | 0 to 3 mph E | 3% |
| Wednesday Night | 40°F | Partly Cloudy | 0 to 3 mph E | 9% |
| Thursday | 64°F | Slight Chance Rain Showers | 2 mph E | 22% |
| Thursday Night | 44°F | Chance Rain Showers | 2 mph NE | 27% |
| Friday | 66°F | Chance Rain Showers | 3 mph N | 25% |
Forecast source: National Weather Service (api.weather.gov) for Williamstown (44.118, -72.551). Updated through the day.
Growing snapshot for Williamstown
Last spring frost
May 16
First fall frost
Sep 29
Growing season
136 days
Hardiness zone
5a
More local growing data for Williamstown: nearby ZIP 05679 weather · frost dates · planting calendar · Vermont frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Barre Montpelier Ap, Vt (6.9 mi from Williamstown). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.