Belmont, NH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Belmont, a community in Belknap County, New Hampshire.
Overnight
58°F
Clear
Clear, with a low around 58. West wind around 5 mph.
7-day forecast for Belmont
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 58°F | Clear | 5 mph W | 0% |
| Tuesday | 83°F | Sunny | 0 to 10 mph W | 0% |
| Tuesday Night | 59°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Wednesday | 86°F | Partly Sunny | 0 to 5 mph SW | 0% |
| Wednesday Night | 65°F | Partly Cloudy | 0 to 5 mph SW | 6% |
| Thursday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SW | 45% |
| Thursday Night | 68°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 41% |
| Friday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 22% |
| Friday Night | 67°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 22% |
| Saturday | 86°F | Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph W | 44% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph W | 38% |
| Sunday | 87°F | Sunny | 0 to 5 mph W | 9% |
| Sunday Night | 66°F | Mostly Clear | 0 to 5 mph W | 8% |
| Monday | 88°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph W | 18% |
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 Aug 4, 2026.