West Haven, CT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for West Haven, a city in New Haven County, Connecticut.
Today
71°F
Sunny
Sunny. High near 71, with temperatures falling to around 65 in the afternoon. South wind 2 to 8 mph.
7-day forecast for West Haven
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Sunny | 2 to 8 mph S | 0% |
| Tonight | 57°F | Partly Cloudy | 2 to 6 mph S | 0% |
| Thursday | 71°F | Mostly Cloudy | 6 to 12 mph S | 9% |
| Thursday Night | 62°F | Rain Showers Likely | 3 to 9 mph SW | 67% |
| Friday | 69°F | Rain Showers | 6 mph S | 92% |
| Friday Night | 55°F | Showers And Thunderstorms | 5 mph SW | 81% |
| Saturday | 64°F | Slight Chance Rain Showers | 5 to 9 mph NW | 16% |
| Saturday Night | 46°F | Chance Light Rain | 10 mph W | 25% |
| Sunday | 59°F | Slight Chance Light Rain then Mostly Sunny | 8 to 12 mph W | 19% |
| Sunday Night | 42°F | Partly Cloudy | 7 to 10 mph W | 4% |
| Monday | 57°F | Sunny | 12 to 16 mph W | 14% |
| Monday Night | 41°F | Mostly Clear | 10 mph W | 14% |
| Tuesday | 60°F | Sunny | 10 to 15 mph W | 5% |
| Tuesday Night | 41°F | Mostly Clear | 10 mph W | 2% |
Forecast source: National Weather Service (api.weather.gov) for West Haven (41.272, -72.967). Updated through the day.
Growing snapshot for West Haven
Last spring frost
Apr 17
First fall frost
Oct 27
Growing season
193 days
Hardiness zone
7a
More local growing data for West Haven: nearby ZIP 06516 weather · frost dates · planting calendar · Connecticut frost dates
Nearby towns & communities
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Meriden
Milford city
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New Haven
North Haven
Northford
Orange
Quinnipiac University
Wallingford Center
Waterbury
Woodmont
Climate data from the nearest NOAA station, New Haven Tweed Ap, Ct (4.1 mi from West Haven). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.