Belmont, NH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Belmont, a community in Belknap County, New Hampshire.
Overnight
46°F
Partly Cloudy
Partly cloudy, with a low around 46. Wind around 0 mph.
7-day forecast for Belmont
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Partly Cloudy | 0 mph | 2% |
| Wednesday | 74°F | Mostly Sunny | 0 to 5 mph SW | 3% |
| Wednesday Night | 51°F | Partly Cloudy | 0 to 5 mph S | 2% |
| Thursday | 69°F | Mostly Cloudy then Light Rain Likely | 5 to 10 mph S | 61% |
| Thursday Night | 56°F | Chance Light Rain | 0 to 5 mph SW | 32% |
| Friday | 68°F | Chance Light Rain | 0 mph | 53% |
| Friday Night | 51°F | Light Rain | 0 mph | 81% |
| Saturday | 61°F | Light Rain Likely | 0 to 5 mph N | 65% |
| Saturday Night | 41°F | Chance Light Rain | 0 to 5 mph N | 40% |
| Sunday | 55°F | Chance Light Rain | 5 to 10 mph NW | 33% |
| Sunday Night | 34°F | Partly Cloudy | 0 to 5 mph W | 8% |
| Monday | 51°F | Mostly Sunny | 5 to 10 mph W | 14% |
| Monday Night | 31°F | Partly Cloudy | 5 mph W | 12% |
| Tuesday | 54°F | Mostly Sunny | 5 to 10 mph W | 8% |
Forecast source: National Weather Service (api.weather.gov) for Belmont (43.440, -71.479). Updated through the day.
Growing snapshot for Belmont
Last spring frost
Apr 30
First fall frost
Oct 18
Growing season
170 days
Hardiness zone
5b
More local growing data for Belmont: nearby ZIP 03220 weather · frost dates · planting calendar · New Hampshire frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lakeport 2, Nh (5.2 mi from Belmont). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.