Byram, CT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Byram, a community in Westchester County, Connecticut.
Overnight
56°F
Partly Cloudy
Partly cloudy, with a low around 56. North wind around 12 mph.
7-day forecast for Byram
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Partly Cloudy | 12 mph N | 0% |
| Saturday | 69°F | Mostly Sunny | 8 to 12 mph E | 0% |
| Saturday Night | 59°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 8 mph SE | 17% |
| Sunday | 69°F | Showers And Thunderstorms | 5 to 12 mph SE | 87% |
| Sunday Night | 59°F | Showers And Thunderstorms | 2 to 12 mph SW | 87% |
| Monday | 67°F | Chance Rain Showers | 12 mph NE | 44% |
| Monday Night | 54°F | Chance Rain Showers | 10 to 14 mph NE | 28% |
| Tuesday | 63°F | Chance Rain Showers | 15 mph NE | 27% |
| Tuesday Night | 52°F | Chance Rain Showers then Mostly Cloudy | 16 mph NE | 27% |
| Wednesday | 63°F | Mostly Cloudy then Slight Chance Rain Showers | 17 mph NE | 15% |
| Wednesday Night | 52°F | Chance Rain Showers | 15 to 18 mph NE | 33% |
| Thursday | 63°F | Chance Rain Showers | 17 mph NE | 33% |
| Thursday Night | 52°F | Chance Rain Showers | 15 mph NE | 35% |
| Friday | 67°F | Chance Rain Showers | 14 mph N | 35% |
Forecast source: National Weather Service (api.weather.gov) for Byram (41.001, -73.654). Updated through the day.
Growing snapshot for Byram
Last spring frost
Apr 12
First fall frost
Oct 31
Growing season
200 days
Hardiness zone
7b
More local growing data for Byram: nearby ZIP 10573 weather · frost dates · planting calendar · Connecticut frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Westchester Co Ap, Ny (3.9 mi from Byram). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.