New Britain, CT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for New Britain, a city in Hartford County, Connecticut.
Today
83°F
Sunny
Sunny, with a high near 83. West wind 0 to 3 mph.
7-day forecast for New Britain
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Sunny | 0 to 3 mph W | 0% |
| Tonight | 61°F | Partly Cloudy | 0 to 3 mph SW | 3% |
| Wednesday | 82°F | Partly Sunny | 0 to 6 mph SW | 3% |
| Wednesday Night | 67°F | Mostly Cloudy then Slight Chance Rain Showers | 1 to 5 mph S | 15% |
| Thursday | 86°F | Chance Rain Showers | 1 to 9 mph S | 42% |
| Thursday Night | 71°F | Chance Showers And Thunderstorms | 2 to 8 mph SW | 54% |
| Friday | 88°F | Mostly Sunny then Chance Rain Showers | 2 to 8 mph SW | 35% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 1 to 6 mph SW | 47% |
| Saturday | 86°F | Mostly Sunny then Chance Rain Showers | 1 to 7 mph W | 31% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 1 to 5 mph SW | 42% |
| Sunday | 87°F | Mostly Sunny then Slight Chance Rain Showers | 1 to 7 mph W | 18% |
| Sunday Night | 69°F | Slight Chance Rain Showers then Partly Cloudy | 2 to 6 mph SW | 22% |
| Monday | 88°F | Sunny | 2 to 9 mph SW | 11% |
| Monday Night | 68°F | Partly Cloudy | 5 to 8 mph W | 13% |
Forecast source: National Weather Service (api.weather.gov) for New Britain (41.677, -72.786). Updated through the day.
Growing snapshot for New Britain
Last spring frost
Apr 17
First fall frost
Oct 26
Growing season
191 days
Hardiness zone
6b
More local growing data for New Britain: nearby ZIP 06053 weather · frost dates · planting calendar · Connecticut frost dates
Nearby towns & communities
Blue Hills
Bristol
Broad Brook
Canton Valley
Collinsville
East Hartford
Glastonbury Center
Hartford
Hazardville
Kensington
Manchester
Newington
North Granby
Plantsville
Riverton
Salmon Brook
Sherwood Manor
Simsbury Center
Southwood Acres
Suffield Depot
Tariffville
Terramuggus
Thompsonville
Weatogue
West Hartford
West Simsbury
Wethersfield
Windsor Locks
Climate data from the nearest NOAA station, Hartford Brainard Fld, Ct (8 mi from New Britain). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.