Plattsville, CT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Plattsville, a community in Fairfield County, Connecticut.
Overnight
53°F
Partly Cloudy
Partly cloudy, with a low around 53. North wind around 10 mph.
7-day forecast for Plattsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 53°F | Partly Cloudy | 10 mph N | 0% |
| Saturday | 68°F | Mostly Sunny | 6 to 9 mph E | 0% |
| Saturday Night | 56°F | Mostly Cloudy | 3 to 8 mph SE | 6% |
| Sunday | 68°F | Showers And Thunderstorms | 7 to 12 mph SE | 88% |
| Sunday Night | 57°F | Showers And Thunderstorms | 3 to 13 mph S | 88% |
| Monday | 66°F | Chance Rain Showers | 10 to 14 mph NE | 44% |
| Monday Night | 52°F | Slight Chance Rain Showers | 8 to 15 mph NE | 24% |
| Tuesday | 63°F | Chance Rain Showers | 15 mph NE | 25% |
| Tuesday Night | 50°F | Slight Chance Rain Showers then Mostly Cloudy | 13 to 17 mph NE | 22% |
| Wednesday | 63°F | Mostly Cloudy then Slight Chance Rain Showers | 15 to 18 mph NE | 15% |
| Wednesday Night | 50°F | Chance Rain Showers | 17 mph NE | 29% |
| Thursday | 63°F | Chance Rain Showers | 17 mph NE | 32% |
| Thursday Night | 51°F | Chance Rain Showers | 14 to 17 mph NE | 36% |
| Friday | 65°F | Chance Rain Showers | 13 to 17 mph N | 35% |
Forecast source: National Weather Service (api.weather.gov) for Plattsville (41.226, -73.259). Updated through the day.
Growing snapshot for Plattsville
Last spring frost
Apr 5
First fall frost
Nov 6
Growing season
216 days
Hardiness zone
7a
More local growing data for Plattsville: nearby ZIP 06825 weather · frost dates · planting calendar · Connecticut frost dates
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Candlewood Orchards
Candlewood Shores
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Chimney Point
Coleytown
Compo
Cos Cob
Danbury
Daniels Farm
Darien Downtown
Dodgingtown
East Village
Fairfield University
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Greenwich
Hawleyville
Indian Field
Inglenook
Climate data from the nearest NOAA station, Bridgeport Sikorsky Mem Ap, Ct (6.5 mi from Plattsville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.