Amherst, NH Weather & Growing Conditions
Overnight
48°F
Mostly Cloudy
Mostly cloudy, with a low around 48. South wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 48°F | Mostly Cloudy | 0 mph | 2% |
| Wednesday | 76°F | Mostly Sunny | 0 to 5 mph SW | 5% |
| Wednesday Night | 55°F | Partly Cloudy | 0 to 5 mph SW | 2% |
| Thursday | 73°F | Scattered Rain Showers | 0 to 10 mph SW | 39% |
| Thursday Night | 59°F | Scattered Rain Showers | 0 to 5 mph SW | 46% |
| Friday | 70°F | Light Rain | 0 mph | 76% |
| Friday Night | 53°F | Light Rain | 0 mph | 80% |
| Saturday | 63°F | Light Rain Likely | 0 to 5 mph NW | 71% |
| Saturday Night | 41°F | Light Rain Likely | 0 to 5 mph NW | 55% |
| Sunday | 59°F | Slight Chance Light Rain then Mostly Sunny | 5 mph W | 24% |
| Sunday Night | 35°F | Partly Cloudy | 0 to 5 mph W | 11% |
| Monday | 57°F | Mostly Sunny then Slight Chance Light Rain | 5 to 10 mph W | 19% |
| Monday Night | 33°F | Slight Chance Light Rain | 5 mph W | 18% |
| Tuesday | 57°F | Mostly Sunny | 5 to 10 mph W | 12% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Amherst, NH
Last spring frost
May 3
First fall frost
Oct 5
Growing season
156 days
Hardiness zone
6a
Explore more for Amherst, NH: full frost dates · planting calendar · New Hampshire frost dates
Climate data from the nearest NOAA station, Milford, Nh (3.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.