Harman US

Bristol, NH Weather & Growing Conditions

Tonight
44°F
Partly Cloudy
Partly cloudy, with a low around 44. South wind around 0 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 44°F Partly Cloudy 0 mph 1%
Sunday 53°F Rain 0 to 5 mph SE 100%
Sunday Night 46°F Rain 0 to 5 mph NE 81%
Monday 63°F Patchy Fog then Mostly Sunny 5 mph NW 0%
Monday Night 40°F Mostly Cloudy 0 to 5 mph N 0%
Tuesday 62°F Mostly Sunny 0 mph 0%
Tuesday Night 42°F Partly Cloudy 0 mph 0%
Wednesday 62°F Mostly Sunny 0 to 5 mph NE 1%
Wednesday Night 41°F Partly Cloudy 0 to 5 mph NE 1%
Thursday 62°F Mostly Sunny then Slight Chance Rain Showers 0 to 5 mph NE 16%
Thursday Night 44°F Chance Rain Showers 0 mph 31%
Friday 62°F Chance Rain Showers 0 to 5 mph N 31%
Friday Night 47°F Chance Rain Showers 0 to 5 mph N 35%
Saturday 64°F Chance Rain Showers 5 mph N 34%

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 20, 2026.