Guilford Center, CT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Guilford Center, a community in New Haven County, Connecticut.
This Afternoon
70°F
Mostly Sunny
Mostly sunny. High near 70, with temperatures falling to around 67 in the afternoon. Southeast wind around 7 mph.
7-day forecast for Guilford Center
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Mostly Sunny | 7 mph SE | 0% |
| Tonight | 54°F | Partly Cloudy | 6 mph SE | 1% |
| Sunday | 69°F | Rain | 3 to 9 mph SE | 93% |
| Sunday Night | 53°F | Rain | 5 to 10 mph E | 93% |
| Monday | 68°F | Chance Light Rain then Partly Sunny | 7 to 13 mph N | 32% |
| Monday Night | 50°F | Mostly Cloudy | 5 to 9 mph NE | 9% |
| Tuesday | 65°F | Slight Chance Rain Showers | 13 mph NE | 17% |
| Tuesday Night | 49°F | Mostly Cloudy | 10 to 14 mph NE | 11% |
| Wednesday | 67°F | Partly Sunny | 14 to 18 mph NE | 7% |
| Wednesday Night | 49°F | Chance Rain Showers | 16 mph NE | 27% |
| Thursday | 66°F | Chance Rain Showers | 20 mph NE | 31% |
| Thursday Night | 49°F | Chance Rain Showers | 14 to 17 mph NE | 37% |
| Friday | 66°F | Chance Rain Showers | 18 mph N | 33% |
| Friday Night | 50°F | Chance Rain Showers | 16 mph N | 34% |
Forecast source: National Weather Service (api.weather.gov) for Guilford Center (41.281, -72.676). Updated through the day.
Growing snapshot for Guilford Center
Last spring frost
Apr 17
First fall frost
Oct 27
Growing season
193 days
Hardiness zone
7a
More local growing data for Guilford Center: nearby ZIP 06437 weather · frost dates · planting calendar · Connecticut frost dates
Nearby towns & communities
Ansonia
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Madison Center
Meriden
Milford city
Naugatuck
New Haven
North Haven
Northford
Orange
Quinnipiac University
Wallingford Center
Waterbury
West Haven
Woodmont
Climate data from the nearest NOAA station, New Haven Tweed Ap, Ct (10.9 mi from Guilford Center). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.