West Cornwall, CT Weather & Growing Conditions
Tonight
46°F
Mostly Cloudy
Mostly cloudy, with a low around 46. North wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Mostly Cloudy | 2 mph N | 0% |
| Saturday | 67°F | Mostly Sunny | 2 mph NE | 0% |
| Saturday Night | 50°F | Mostly Cloudy | 2 mph SE | 2% |
| Sunday | 62°F | Rain Showers | 2 to 6 mph SE | 95% |
| Sunday Night | 52°F | Rain Showers | 1 to 6 mph E | 95% |
| Monday | 64°F | Slight Chance Rain Showers | 7 mph N | 24% |
| Monday Night | 47°F | Slight Chance Rain Showers then Mostly Cloudy | 2 to 7 mph NE | 19% |
| Tuesday | 60°F | Slight Chance Rain Showers | 8 mph NE | 21% |
| Tuesday Night | 45°F | Mostly Cloudy | 5 to 10 mph NE | 9% |
| Wednesday | 60°F | Partly Sunny | 8 to 12 mph NE | 14% |
| Wednesday Night | 45°F | Chance Rain Showers | 7 to 10 mph NE | 25% |
| Thursday | 59°F | Chance Rain Showers | 7 to 10 mph NE | 30% |
| Thursday Night | 47°F | Chance Rain Showers | 5 to 8 mph NE | 35% |
| Friday | 66°F | Chance Rain Showers | 8 mph N | 32% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for West Cornwall, CT
Last spring frost
May 11
First fall frost
Oct 4
Growing season
146 days
Hardiness zone
6a
Explore more for West Cornwall, CT: full frost dates · planting calendar · Connecticut frost dates
Climate data from the nearest NOAA station, Falls Village, Ct (5.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.