Amherst, NH Weather & Growing Conditions
Overnight
49°F
Mostly Clear
Mostly clear, with a low around 49. Wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 49°F | Mostly Clear | 0 mph | 2% |
| Wednesday | 76°F | Mostly Sunny | 0 to 5 mph SW | 3% |
| Wednesday Night | 55°F | Partly Cloudy | 0 to 5 mph SW | 2% |
| Thursday | 73°F | Mostly Cloudy then Chance Light Rain | 5 to 10 mph S | 39% |
| Thursday Night | 59°F | Chance Light Rain | 0 to 5 mph SW | 40% |
| Friday | 71°F | Light Rain Likely | 0 mph | 73% |
| Friday Night | 53°F | Light Rain | 0 mph | 86% |
| Saturday | 64°F | Light Rain Likely | 0 to 5 mph N | 68% |
| Saturday Night | 42°F | Chance Light Rain | 0 to 5 mph NW | 35% |
| Sunday | 59°F | Chance Light Rain then Mostly Sunny | 5 mph NW | 28% |
| Sunday Night | 36°F | Partly Cloudy | 0 to 5 mph W | 7% |
| Monday | 54°F | Mostly Sunny then Slight Chance Light Rain | 5 to 10 mph W | 15% |
| Monday Night | 33°F | Partly Cloudy | 5 mph W | 13% |
| Tuesday | 58°F | Mostly Sunny | 5 to 10 mph W | 7% |
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.