Troy, NH Weather & Growing Conditions
Tonight
45°F
Partly Cloudy
Partly cloudy, with a low around 45. Southeast wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 45°F | Partly Cloudy | 0 to 5 mph SE | 0% |
| Sunday | 53°F | Rain | 0 to 5 mph SE | 100% |
| Sunday Night | 45°F | Rain then Patchy Fog | 0 to 5 mph NE | 77% |
| Monday | 64°F | Patchy Fog then Mostly Sunny | 5 mph N | 0% |
| Monday Night | 42°F | Mostly Cloudy | 5 mph NE | 1% |
| Tuesday | 60°F | Partly Sunny | 5 mph NE | 1% |
| Tuesday Night | 41°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Wednesday | 60°F | Mostly Sunny | 5 to 10 mph NE | 1% |
| Wednesday Night | 41°F | Partly Cloudy then Slight Chance Rain Showers | 5 to 10 mph NE | 15% |
| Thursday | 59°F | Slight Chance Rain Showers | 10 mph NE | 20% |
| Thursday Night | 43°F | Chance Rain Showers | 5 to 15 mph NE | 34% |
| Friday | 60°F | Chance Rain Showers | 10 to 15 mph NE | 36% |
| Friday Night | 45°F | Chance Rain Showers | 10 to 15 mph N | 40% |
| Saturday | 63°F | Chance Rain Showers | 10 to 15 mph N | 39% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Troy, NH
Last spring frost
May 5
First fall frost
Oct 6
Growing season
152 days
Hardiness zone
6a
Explore more for Troy, NH: full frost dates · planting calendar · New Hampshire frost dates
Climate data from the nearest NOAA station, Jaffrey Muni Ap, Nh (8.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.