Williamstown, VT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Williamstown, a community in Orange County, Vermont.
This Afternoon
63°F
Chance Rain Showers
A chance of rain showers. Cloudy, with a high near 63. South wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Williamstown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 63°F | Chance Rain Showers | 5 mph S | 49% |
| Tonight | 49°F | Slight Chance Rain Showers then Partly Cloudy | 8 mph S | 24% |
| Wednesday | 76°F | Mostly Sunny | 8 mph S | 4% |
| Wednesday Night | 49°F | Partly Cloudy | 9 mph S | 0% |
| Thursday | 69°F | Rain Showers | 6 to 9 mph S | 78% |
| Thursday Night | 53°F | Rain Showers Likely | 0 to 5 mph S | 57% |
| Friday | 64°F | Chance Rain Showers | 1 mph W | 43% |
| Friday Night | 47°F | Light Rain Likely | 1 mph N | 61% |
| Saturday | 58°F | Light Rain Likely | 3 mph NW | 63% |
| Saturday Night | 39°F | Light Rain Likely | 2 mph W | 63% |
| Sunday | 51°F | Chance Light Rain | 6 mph W | 28% |
| Sunday Night | 32°F | Slight Chance Light Rain | 3 mph W | 21% |
| Monday | 50°F | Chance Rain And Snow | 3 to 9 mph W | 29% |
| Monday Night | 30°F | Chance Light Rain then Chance Rain And Snow | 5 mph W | 32% |
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 Nov 3, 2026.