West Simsbury, CT Weather & Growing Conditions
Tonight
48°F
Mostly Cloudy
Mostly cloudy, with a low around 48. Southeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 48°F | Mostly Cloudy | 3 mph SE | 6% |
| Sunday | 60°F | Rain Showers | 1 to 6 mph SE | 100% |
| Sunday Night | 54°F | Patchy Fog | 5 to 10 mph NE | 90% |
| Monday | 66°F | Partly Sunny | 7 to 12 mph N | 5% |
| Monday Night | 47°F | Mostly Cloudy | 8 mph NE | 4% |
| Tuesday | 62°F | Partly Sunny | 8 mph NE | 8% |
| Tuesday Night | 46°F | Mostly Cloudy | 6 to 10 mph NE | 3% |
| Wednesday | 64°F | Partly Sunny | 14 mph NE | 3% |
| Wednesday Night | 46°F | Mostly Cloudy then Slight Chance Rain Showers | 9 to 14 mph NE | 17% |
| Thursday | 63°F | Slight Chance Rain Showers | 12 to 15 mph NE | 24% |
| Thursday Night | 48°F | Chance Rain Showers | 12 to 18 mph NE | 36% |
| Friday | 63°F | Chance Rain Showers | 14 to 18 mph N | 38% |
| Friday Night | 50°F | Chance Rain Showers | 15 to 18 mph N | 38% |
| Saturday | 66°F | Chance Rain Showers | 13 to 18 mph N | 32% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for West Simsbury, CT
Last spring frost
Apr 30
First fall frost
Oct 17
Growing season
168 days
Hardiness zone
6b
Explore more for West Simsbury, CT: full frost dates · planting calendar · Connecticut frost dates
Climate data from the nearest NOAA station, Barkhamsted, Ct (6.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.