Belmont, NH Weather & Growing Conditions
Tonight
45°F
Mostly Cloudy
Mostly cloudy, with a low around 45. South wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 45°F | Mostly Cloudy | 0 mph | 6% |
| Wednesday | 73°F | Mostly Sunny | 0 to 5 mph SW | 6% |
| Wednesday Night | 50°F | Partly Cloudy | 0 mph | 2% |
| Thursday | 69°F | Scattered Rain Showers | 0 to 10 mph SW | 45% |
| Thursday Night | 56°F | Isolated Rain Showers | 0 to 5 mph SW | 20% |
| Friday | 66°F | Light Rain Likely | 0 to 5 mph NW | 59% |
| Friday Night | 51°F | Light Rain | 0 to 5 mph NE | 79% |
| Saturday | 59°F | Light Rain Likely | 5 mph N | 67% |
| Saturday Night | 41°F | Chance Light Rain | 0 to 5 mph NW | 52% |
| Sunday | 55°F | Chance Light Rain | 5 to 10 mph W | 28% |
| Sunday Night | 33°F | Partly Cloudy | 0 to 5 mph W | 13% |
| Monday | 52°F | Slight Chance Light Rain | 5 to 10 mph W | 19% |
| Monday Night | 31°F | Slight Chance Light Rain | 5 mph W | 18% |
| Tuesday | 53°F | Slight Chance Light Rain | 5 to 10 mph W | 18% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Belmont, NH
Last spring frost
Apr 30
First fall frost
Oct 18
Growing season
170 days
Hardiness zone
5b
Explore more for Belmont, NH: full frost dates · planting calendar · New Hampshire frost dates
Climate data from the nearest NOAA station, Lakeport 2, Nh (5.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.