West Cornwall, CT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for West Cornwall, a community in Litchfield County, Connecticut.
Tonight
46°F
Mostly Cloudy
Mostly cloudy, with a low around 46. North wind around 2 mph.
7-day forecast for West Cornwall
| 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 | 1 mph SE | 3% |
| Sunday | 62°F | Rain Showers | 2 to 6 mph SE | 95% |
| Sunday Night | 52°F | Rain Showers | 1 to 5 mph NE | 95% |
| Monday | 64°F | Slight Chance Rain Showers | 6 mph N | 24% |
| Monday Night | 47°F | Slight Chance Rain Showers then Mostly Cloudy | 2 to 6 mph NE | 20% |
| Tuesday | 59°F | Slight Chance Rain Showers | 7 mph NE | 21% |
| Tuesday Night | 45°F | Mostly Cloudy | 3 to 9 mph NE | 9% |
| Wednesday | 60°F | Partly Sunny then Slight Chance Rain Showers | 9 mph NE | 15% |
| Wednesday Night | 45°F | Chance Rain Showers | 5 to 9 mph NE | 25% |
| Thursday | 60°F | Chance Rain Showers | 6 to 9 mph NE | 29% |
| Thursday Night | 47°F | Chance Rain Showers | 3 to 7 mph NE | 34% |
| Friday | 65°F | Chance Rain Showers | 7 mph N | 32% |
Forecast source: National Weather Service (api.weather.gov) for West Cornwall (41.864, -73.361). Updated through the day.
Growing snapshot for West Cornwall
Last spring frost
May 11
First fall frost
Oct 4
Growing season
146 days
Hardiness zone
6a
More local growing data for West Cornwall: nearby ZIP 06796 weather · frost dates · planting calendar · Connecticut frost dates
Nearby towns & communities
Bantam
Bethlehem Village
Bridgewater
Canaan
Cornwall
Cornwall Bridge
Falls Village
Gaylordsville
Lakeville
Litchfield
New Hartford Center
New Milford
New Preston
Norfolk
Northwest Harwinton
Oakville
Pleasant Valley
Sharon
Terryville
Thomaston
Torrington
Watertown
Winsted
Woodbury Center
Climate data from the nearest NOAA station, Falls Village, Ct (5.5 mi from West Cornwall). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.