Danbury, CT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Danbury, a city in Fairfield County, Connecticut.
Tonight
50°F
Partly Cloudy
Partly cloudy. Low around 50, with temperatures rising to around 52 overnight. North wind around 6 mph.
7-day forecast for Danbury
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Partly Cloudy | 6 mph N | 0% |
| Saturday | 68°F | Mostly Sunny | 6 mph E | 0% |
| Saturday Night | 54°F | Mostly Cloudy then Slight Chance Rain Showers | 2 to 6 mph SE | 15% |
| Sunday | 65°F | Showers And Thunderstorms | 5 to 10 mph SE | 93% |
| Sunday Night | 55°F | Showers And Thunderstorms | 3 to 10 mph NW | 93% |
| Monday | 66°F | Chance Rain Showers | 7 to 10 mph N | 34% |
| Monday Night | 50°F | Slight Chance Rain Showers | 5 to 9 mph NE | 24% |
| Tuesday | 61°F | Chance Rain Showers | 10 mph NE | 25% |
| Tuesday Night | 47°F | Slight Chance Rain Showers then Mostly Cloudy | 8 to 12 mph NE | 15% |
| Wednesday | 61°F | Partly Sunny then Slight Chance Rain Showers | 13 mph NE | 15% |
| Wednesday Night | 48°F | Chance Rain Showers | 9 to 13 mph NE | 27% |
| Thursday | 61°F | Chance Rain Showers | 13 mph NE | 28% |
| Thursday Night | 49°F | Chance Rain Showers | 8 to 12 mph N | 36% |
| Friday | 65°F | Chance Rain Showers | 12 mph N | 34% |
Forecast source: National Weather Service (api.weather.gov) for Danbury (41.399, -73.478). Updated through the day.
Growing snapshot for Danbury
Last spring frost
Apr 20
First fall frost
Oct 20
Growing season
181 days
Hardiness zone
6b
More local growing data for Danbury: nearby ZIP 06811 weather · frost dates · planting calendar · Connecticut frost dates
Nearby towns & communities
Ball Pond
Bethel
Bigelow Corners
Bogus Hill
Botsford
Branchville
Bridgeport
Brookfield Center
Candlewood Isle
Candlewood Knolls
Candlewood Lake Club
Candlewood Orchards
Candlewood Shores
Cannondale
Chimney Point
Coleytown
Compo
Cos Cob
Daniels Farm
Darien Downtown
Dodgingtown
East Village
Fairfield University
Georgetown
Greens Farms
Greenwich
Hawleyville
Indian Field
Inglenook
Kellogg Point
Climate data from the nearest NOAA station, Danbury, Ct (3.3 mi from Danbury). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.