Groton, VT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Groton, a community in Caledonia County, Vermont.
Tonight
45°F
Chance Rain Showers then Mostly Cloudy
A chance of rain showers before 8pm. Mostly cloudy, with a low around 45. Southeast wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Groton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 45°F | Chance Rain Showers then Mostly Cloudy | 6 mph SE | 32% |
| Wednesday | 74°F | Mostly Sunny | 1 to 7 mph S | 4% |
| Wednesday Night | 46°F | Partly Cloudy | 7 mph SE | 0% |
| Thursday | 68°F | Rain Showers | 3 to 7 mph S | 80% |
| Thursday Night | 52°F | Rain Showers Likely | 2 mph SW | 58% |
| Friday | 64°F | Chance Rain Showers | 1 mph W | 44% |
| Friday Night | 47°F | Light Rain Likely | 1 mph N | 64% |
| Saturday | 58°F | Light Rain Likely | 2 mph NW | 64% |
| Saturday Night | 38°F | Light Rain Likely | 1 mph NW | 64% |
| Sunday | 51°F | Chance Light Rain | 3 mph W | 34% |
| Sunday Night | 31°F | Slight Chance Light Rain | 1 mph W | 17% |
| Monday | 49°F | Chance Light Rain | 1 to 5 mph NW | 27% |
| Monday Night | 28°F | Chance Light Rain then Chance Rain And Snow | 2 mph W | 31% |
| Tuesday | 50°F | Chance Rain And Snow | 2 to 6 mph SW | 31% |
Forecast source: National Weather Service (api.weather.gov) for Groton (44.219, -72.201). Updated through the day.
Growing snapshot for Groton
Last spring frost
May 25
First fall frost
Sep 22
Growing season
119 days
Hardiness zone
4b
More local growing data for Groton: nearby ZIP 05046 weather · frost dates · planting calendar · Vermont frost dates
Nearby towns & communities
Barnet
Danville
East Burke
Hardwick
Lyndon
Lyndon Center
Lyndonville
Peacham
Sheffield
St. Johnsbury
Sutton
West Burke
Climate data from the nearest NOAA station, Plainfield, Vt (8.4 mi from Groton). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.