Dayville, CT Weather & Growing Conditions
Tonight
49°F
Partly Cloudy
Partly cloudy, with a low around 49. North wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 49°F | Partly Cloudy | 7 mph N | 0% |
| Saturday | 66°F | Mostly Sunny | 1 to 5 mph NE | 0% |
| Saturday Night | 44°F | Partly Cloudy | 3 mph SE | 2% |
| Sunday | 66°F | Rain Showers | 1 to 6 mph SE | 85% |
| Sunday Night | 54°F | Rain Showers | 3 to 9 mph E | 86% |
| Monday | 66°F | Chance Rain Showers | 7 to 12 mph NE | 31% |
| Monday Night | 48°F | Slight Chance Rain Showers then Partly Cloudy | 5 to 10 mph NE | 16% |
| Tuesday | 62°F | Partly Sunny | 13 mph NE | 13% |
| Tuesday Night | 47°F | Mostly Cloudy | 8 to 12 mph NE | 6% |
| Wednesday | 62°F | Partly Sunny | 12 to 17 mph NE | 10% |
| Wednesday Night | 48°F | Mostly Cloudy then Slight Chance Rain Showers | 9 to 13 mph NE | 23% |
| Thursday | 62°F | Chance Rain Showers | 13 to 17 mph NE | 29% |
| Thursday Night | 48°F | Chance Rain Showers | 9 to 13 mph NE | 35% |
| Friday | 65°F | Chance Rain Showers | 10 to 14 mph N | 32% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Dayville, CT
Last spring frost
May 1
First fall frost
Oct 9
Growing season
161 days
Hardiness zone
6b
Explore more for Dayville, CT: full frost dates · planting calendar · Connecticut frost dates
Climate data from the nearest NOAA station, W Thompson Lake, Ct (7.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.