Ansonia, CT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ansonia, a city in New Haven County, Connecticut.
Today
82°F
Sunny
Sunny, with a high near 82. Southeast wind around 5 mph.
7-day forecast for Ansonia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Sunny | 5 mph SE | 0% |
| Tonight | 62°F | Mostly Cloudy | 3 mph S | 3% |
| Wednesday | 81°F | Partly Sunny | 5 mph SW | 9% |
| Wednesday Night | 68°F | Slight Chance Rain Showers | 5 mph S | 23% |
| Thursday | 86°F | Chance Showers And Thunderstorms | 2 to 9 mph SW | 43% |
| Thursday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 to 8 mph SW | 37% |
| Friday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 7 mph SW | 41% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 39% |
| Saturday | 85°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 8 mph W | 37% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 5 mph W | 37% |
| Sunday | 86°F | Mostly Sunny | 2 to 7 mph W | 12% |
| Sunday Night | 69°F | Mostly Clear | 6 mph SW | 10% |
| Monday | 88°F | Sunny | 3 to 9 mph W | 14% |
| Monday Night | 68°F | Slight Chance Rain Showers | 5 to 8 mph W | 15% |
Forecast source: National Weather Service (api.weather.gov) for Ansonia (41.344, -73.070). Updated through the day.
Growing snapshot for Ansonia
Last spring frost
Apr 25
First fall frost
Oct 17
Growing season
175 days
Hardiness zone
6b
More local growing data for Ansonia: nearby ZIP 06401 weather · frost dates · planting calendar · Connecticut frost dates
Nearby towns & communities
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Milford city
Naugatuck
New Haven
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Northford
Orange
Quinnipiac University
Wallingford Center
Waterbury
West Haven
Woodmont
Climate data from the nearest NOAA station, Ansonia 1 Ne, Ct (1.2 mi from Ansonia). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.