Troy, NH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Troy, a community in Cheshire County, New Hampshire.
Today
82°F
Sunny
Sunny, with a high near 82. West wind 0 to 10 mph.
7-day forecast for Troy
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Sunny | 0 to 10 mph W | 0% |
| Tonight | 58°F | Partly Cloudy | 0 to 5 mph SW | 0% |
| Wednesday | 82°F | Partly Sunny | 0 to 5 mph W | 0% |
| Wednesday Night | 65°F | Partly Cloudy | 0 to 5 mph SW | 9% |
| Thursday | 84°F | Mostly Sunny then Showers And Thunderstorms Likely | 0 to 5 mph SW | 56% |
| Thursday Night | 68°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SW | 49% |
| Friday | 86°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 31% |
| Friday Night | 66°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 29% |
| Saturday | 84°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph W | 38% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph W | 34% |
| Sunday | 85°F | Sunny | 0 to 5 mph W | 11% |
| Sunday Night | 66°F | Mostly Clear | 0 to 5 mph SW | 10% |
| Monday | 85°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph SW | 17% |
| Monday Night | 63°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph W | 17% |
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 Aug 4, 2026.