Amherst, NH Weather & Growing Conditions
Today
85°F
Sunny
Sunny, with a high near 85. West wind 0 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Sunny | 0 to 10 mph W | 0% |
| Tonight | 59°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Wednesday | 86°F | Mostly Sunny | 0 to 5 mph SW | 0% |
| Wednesday Night | 66°F | Partly Cloudy | 0 to 5 mph SW | 7% |
| Thursday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 39% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SW | 33% |
| Friday | 90°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 27% |
| Friday Night | 68°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 26% |
| Saturday | 88°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph W | 41% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph W | 37% |
| Sunday | 89°F | Sunny | 0 to 5 mph W | 10% |
| Sunday Night | 68°F | Mostly Clear | 0 to 5 mph W | 9% |
| Monday | 89°F | Sunny | 0 to 10 mph W | 14% |
| Monday Night | 66°F | Mostly Clear | 5 to 10 mph W | 14% |
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 Aug 4, 2026.