Williamstown, VT Weather & Growing Conditions
This Afternoon
76°F
Mostly Sunny
Mostly sunny. High near 76, with temperatures falling to around 65 in the afternoon. South wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 76°F | Mostly Sunny | 6 mph S | 2% |
| Tonight | 49°F | Partly Cloudy | 6 mph S | 2% |
| Thursday | 67°F | Rain Showers | 6 mph S | 84% |
| Thursday Night | 51°F | Chance Rain Showers then Patchy Fog | 2 to 6 mph S | 70% |
| Friday | 67°F | Patchy Fog then Mostly Cloudy | 2 mph SW | 13% |
| Friday Night | 47°F | Chance Light Rain | 2 mph N | 46% |
| Saturday | 59°F | Chance Light Rain | 3 mph N | 49% |
| Saturday Night | 39°F | Chance Light Rain | 5 mph NW | 49% |
| Sunday | 52°F | Chance Light Rain | 2 to 6 mph NW | 44% |
| Sunday Night | 32°F | Mostly Cloudy then Slight Chance Light Rain | 3 mph W | 19% |
| Monday | 50°F | Chance Light Rain | 5 to 9 mph W | 29% |
| Monday Night | 29°F | Slight Chance Light Rain then Partly Cloudy | 5 mph W | 20% |
| Tuesday | 51°F | Chance Rain And Snow | 3 to 8 mph SW | 30% |
| Tuesday Night | 29°F | Chance Light Rain | 5 mph W | 33% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Williamstown, VT
Last spring frost
May 9
First fall frost
Oct 1
Growing season
143 days
Hardiness zone
5a
Explore more for Williamstown, VT: full frost dates · planting calendar · Vermont frost dates
Climate data from the nearest NOAA station, Chelsea 2 Nw, Vt (5.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.