Troy, NH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Troy, a community in Cheshire County, New Hampshire.
This Afternoon
68°F
Mostly Cloudy
Mostly cloudy. High near 68, with temperatures falling to around 62 in the afternoon. Southeast wind around 0 mph.
7-day forecast for Troy
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Mostly Cloudy | 0 mph | 4% |
| Tonight | 46°F | Mostly Cloudy | 0 to 5 mph SW | 3% |
| Wednesday | 71°F | Mostly Sunny | 0 to 5 mph SW | 4% |
| Wednesday Night | 54°F | Partly Cloudy | 5 mph S | 2% |
| Thursday | 67°F | Light Rain Likely then Scattered Rain Showers | 5 to 10 mph SW | 55% |
| Thursday Night | 59°F | Scattered Rain Showers | 0 to 5 mph SW | 54% |
| Friday | 66°F | Light Rain Likely | 0 to 5 mph W | 71% |
| Friday Night | 52°F | Light Rain | 0 to 5 mph N | 79% |
| Saturday | 60°F | Light Rain Likely | 5 mph NW | 65% |
| Saturday Night | 40°F | Chance Light Rain | 0 to 5 mph W | 42% |
| Sunday | 55°F | Chance Light Rain then Mostly Sunny | 5 to 10 mph W | 25% |
| Sunday Night | 33°F | Partly Cloudy | 0 to 5 mph W | 10% |
| Monday | 53°F | Slight Chance Light Rain | 5 to 10 mph W | 21% |
| Monday Night | 31°F | Slight Chance Light Rain | 5 to 10 mph W | 21% |
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 Nov 4, 2026.