Greenville, NH Weather & Growing Conditions
Today
66°F
Mostly Sunny
Mostly sunny, with a high near 66. Northeast wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 66°F | Mostly Sunny | 0 to 5 mph NE | 0% |
| Tonight | 45°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 57°F | Chance Rain Showers then Rain | 0 to 5 mph SE | 89% |
| Sunday Night | 46°F | Rain then Rain Showers Likely | 0 to 5 mph NE | 86% |
| Monday | 64°F | Partly Sunny | 5 mph N | 5% |
| Monday Night | 43°F | Mostly Cloudy | 5 mph N | 0% |
| Tuesday | 60°F | Partly Sunny | 5 mph NE | 1% |
| Tuesday Night | 42°F | Mostly Cloudy | 0 to 5 mph NE | 1% |
| Wednesday | 61°F | Partly Sunny | 5 to 10 mph NE | 2% |
| Wednesday Night | 42°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 10 mph NE | 17% |
| Thursday | 59°F | Chance Rain Showers | 5 to 10 mph NE | 32% |
| Thursday Night | 44°F | Chance Rain Showers | 5 to 10 mph NE | 34% |
| Friday | 61°F | Chance Rain Showers | 10 mph N | 34% |
| Friday Night | 45°F | Chance Rain Showers | 5 to 10 mph NE | 34% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Greenville, NH
Last spring frost
May 10
First fall frost
Oct 6
Growing season
147 days
Hardiness zone
6a
Explore more for Greenville, NH: full frost dates · planting calendar · New Hampshire frost dates
Climate data from the nearest NOAA station, Greenville 1 Nne, Nh (3.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.