New Boston, NH Weather & Growing Conditions
Overnight
48°F
Mostly Cloudy
Mostly cloudy, with a low around 48. Southwest wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 48°F | Mostly Cloudy | 0 mph | 2% |
| Wednesday | 74°F | Mostly Sunny | 0 to 5 mph SW | 5% |
| Wednesday Night | 54°F | Partly Cloudy | 5 mph SW | 2% |
| Thursday | 70°F | Scattered Rain Showers | 5 to 10 mph SW | 43% |
| Thursday Night | 58°F | Scattered Rain Showers | 0 to 5 mph SW | 38% |
| Friday | 67°F | Light Rain Likely | 0 to 5 mph S | 73% |
| Friday Night | 52°F | Light Rain | 0 mph | 79% |
| Saturday | 61°F | Light Rain Likely | 5 mph NW | 70% |
| Saturday Night | 41°F | Chance Light Rain | 5 mph NW | 54% |
| Sunday | 57°F | Chance Light Rain then Mostly Sunny | 5 to 10 mph W | 25% |
| Sunday Night | 35°F | Partly Cloudy | 0 to 5 mph W | 11% |
| Monday | 54°F | Mostly Sunny then Slight Chance Light Rain | 5 to 10 mph W | 19% |
| Monday Night | 34°F | Slight Chance Light Rain | 5 to 10 mph W | 19% |
| Tuesday | 55°F | Mostly Sunny | 5 to 10 mph W | 13% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for New Boston, NH
Last spring frost
May 2
First fall frost
Oct 8
Growing season
158 days
Hardiness zone
6a
Explore more for New Boston, NH: full frost dates · planting calendar · New Hampshire frost dates
Climate data from the nearest NOAA station, Weare, Nh (7.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.