Troy, NH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Troy, a community in Cheshire County, New Hampshire.
Tonight
43°F
Partly Cloudy
Partly cloudy, with a low around 43. North wind 0 to 5 mph.
7-day forecast for Troy
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 43°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 65°F | Mostly Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 44°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Sunday | 59°F | Rain Showers | 0 to 5 mph SE | 89% |
| Sunday Night | 48°F | Rain Showers | 0 to 5 mph NE | 86% |
| Monday | 63°F | Mostly Sunny | 5 mph N | 12% |
| Monday Night | 44°F | Mostly Cloudy | 5 mph NE | 3% |
| Tuesday | 59°F | Mostly Cloudy | 5 mph NE | 3% |
| Tuesday Night | 43°F | Mostly Cloudy | 0 to 10 mph NE | 2% |
| Wednesday | 58°F | Partly Sunny | 5 to 10 mph NE | 7% |
| Wednesday Night | 43°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 10 mph NE | 21% |
| Thursday | 57°F | Chance Rain Showers | 5 to 10 mph NE | 28% |
| Thursday Night | 45°F | Chance Rain Showers | 5 to 10 mph NE | 30% |
| Friday | 63°F | Chance Rain Showers | 5 to 10 mph N | 29% |
Forecast source: National Weather Service (api.weather.gov) for Troy (42.826, -72.183). Updated through the day.
Growing snapshot for Troy
Last spring frost
May 5
First fall frost
Oct 6
Growing season
154 days
Hardiness zone
6a
More local growing data for Troy: nearby ZIP 03465 weather · frost dates · planting calendar · New Hampshire frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Jaffrey Silver Rch Airpark, Nh (9.4 mi from Troy). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.