Byram, CT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Byram, a community in Westchester County, Connecticut.
Today
84°F
Mostly Sunny
Mostly sunny, with a high near 84. Northeast wind 2 to 6 mph.
7-day forecast for Byram
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Mostly Sunny | 2 to 6 mph NE | 0% |
| Tonight | 65°F | Mostly Cloudy | 3 mph N | 3% |
| Wednesday | 83°F | Partly Sunny then Chance Showers And Thunderstorms | 2 to 6 mph E | 25% |
| Wednesday Night | 71°F | Chance Rain Showers | 6 mph S | 28% |
| Thursday | 89°F | Chance Showers And Thunderstorms | 3 to 9 mph SW | 41% |
| Thursday Night | 73°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 to 8 mph SW | 40% |
| Friday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 7 mph SW | 41% |
| Friday Night | 72°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 40% |
| Saturday | 88°F | Partly Sunny then Chance Showers And Thunderstorms | 3 to 8 mph SW | 32% |
| Saturday Night | 71°F | Chance Showers And Thunderstorms | 7 mph W | 32% |
| Sunday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 7 mph W | 15% |
| Sunday Night | 72°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 6 mph SW | 15% |
| Monday | 90°F | Sunny | 5 to 10 mph W | 13% |
| Monday Night | 71°F | Slight Chance Rain Showers | 5 to 9 mph W | 17% |
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 Aug 4, 2026.