Harman US

Bristol, NH Weather & Growing Conditions

This Afternoon
64°F
Sunny
Sunny, with a high near 64. Northwest wind around 0 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 64°F Sunny 0 mph 0%
Tonight 43°F Partly Cloudy 0 mph 0%
Sunday 54°F Chance Rain Showers then Rain 0 to 5 mph SE 94%
Sunday Night 45°F Rain then Rain Showers Likely 0 to 5 mph N 80%
Monday 61°F Mostly Sunny 5 mph NW 1%
Monday Night 41°F Mostly Cloudy 0 to 5 mph N 0%
Tuesday 61°F Partly Sunny 0 mph 0%
Tuesday Night 41°F Partly Cloudy 0 mph 0%
Wednesday 62°F Mostly Sunny 0 to 5 mph E 0%
Wednesday Night 41°F Partly Cloudy 0 to 5 mph NE 5%
Thursday 61°F Chance Rain Showers 0 to 5 mph NE 27%
Thursday Night 43°F Chance Rain Showers 0 mph 29%
Friday 62°F Chance Rain Showers 0 to 5 mph N 29%
Friday Night 45°F Chance Rain Showers 5 mph N 30%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Bristol, NH

Last spring frost
May 21
First fall frost
Sep 26
Growing season
127 days
Hardiness zone
5b

Explore more for Bristol, NH: full frost dates · planting calendar · New Hampshire frost dates

Climate data from the nearest NOAA station, Grafton, Nh (9.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.