Belfast, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Belfast, a community in Allegany County, New York.
Tonight
46°F
Mostly Cloudy
Mostly cloudy, with a low around 46. North wind 0 to 5 mph.
7-day forecast for Belfast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Mostly Cloudy | 0 to 5 mph N | 1% |
| Saturday | 68°F | Partly Sunny | 2 mph E | 2% |
| Saturday Night | 54°F | Mostly Cloudy then Showers And Thunderstorms | 3 mph SE | 81% |
| Sunday | 67°F | Showers And Thunderstorms | 2 to 6 mph SW | 85% |
| Sunday Night | 47°F | Chance Rain Showers then Mostly Cloudy | 6 mph NE | 53% |
| Monday | 61°F | Mostly Cloudy | 7 mph NE | 4% |
| Monday Night | 44°F | Mostly Cloudy then Chance Rain Showers | 3 to 7 mph NE | 36% |
| Tuesday | 60°F | Chance Rain Showers | 3 to 7 mph E | 39% |
| Tuesday Night | 43°F | Chance Rain Showers | 3 to 7 mph E | 47% |
| Wednesday | 58°F | Chance Rain Showers | 7 mph E | 47% |
| Wednesday Night | 44°F | Chance Showers And Thunderstorms | 3 to 7 mph SE | 48% |
| Thursday | 60°F | Chance Showers And Thunderstorms | 5 mph E | 48% |
| Thursday Night | 46°F | Chance Showers And Thunderstorms | 1 to 5 mph NE | 38% |
| Friday | 65°F | Partly Sunny | 1 to 5 mph N | 12% |
Forecast source: National Weather Service (api.weather.gov) for Belfast (42.341, -78.118). Updated through the day.
Growing snapshot for Belfast
Last spring frost
May 21
First fall frost
Sep 30
Growing season
130 days
Hardiness zone
5b
More local growing data for Belfast: nearby ZIP 14711 weather · frost dates · planting calendar · New York frost dates
Nearby towns & communities
Alfred
Almond
Andover
Angelica
Belmont
Bolivar
Cuba
Fillmore
Friendship
Houghton
Portville
Richburg
Rushford
Scio
Stannards
Wellsville
Climate data from the nearest NOAA station, Angelica, Ny (5.4 mi from Belfast). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.