Bristol, NH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bristol, a community in Grafton County, New Hampshire.
This Afternoon
66°F
Cloudy
Cloudy, with a high near 66. South wind 0 to 5 mph.
7-day forecast for Bristol
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Cloudy | 0 to 5 mph S | 14% |
| Tonight | 46°F | Mostly Cloudy | 0 mph | 9% |
| Wednesday | 74°F | Mostly Sunny | 0 to 5 mph W | 5% |
| Wednesday Night | 49°F | Partly Cloudy | 0 mph | 2% |
| Thursday | 68°F | Scattered Rain Showers | 0 to 5 mph SW | 54% |
| Thursday Night | 55°F | Isolated Rain Showers | 0 mph | 22% |
| Friday | 66°F | Light Rain Likely | 0 mph | 55% |
| Friday Night | 50°F | Light Rain | 0 mph | 75% |
| Saturday | 59°F | Light Rain Likely | 0 to 5 mph NW | 66% |
| Saturday Night | 41°F | Chance Light Rain | 0 to 5 mph W | 54% |
| Sunday | 54°F | Chance Light Rain | 5 to 10 mph W | 30% |
| Sunday Night | 34°F | Partly Cloudy | 0 to 5 mph W | 11% |
| Monday | 52°F | Slight Chance Light Rain | 5 to 10 mph NW | 23% |
| Monday Night | 32°F | Slight Chance Light Rain | 5 mph W | 22% |
Forecast source: National Weather Service (api.weather.gov) for Bristol (43.603, -71.734). Updated through the day.
Growing snapshot for Bristol
Last spring frost
May 21
First fall frost
Sep 26
Growing season
127 days
Hardiness zone
5b
More local growing data for Bristol: nearby ZIP 03222 weather · frost dates · planting calendar · New Hampshire frost dates
Nearby towns & communities
Ashland
Bethlehem
Canaan
Enfield
Lebanon
Lincoln
Lisbon
Littleton
Mountain Lakes
North Haverhill
North Woodstock
Plymouth
Woodsville
Climate data from the nearest NOAA station, Grafton, Nh (9.2 mi from Bristol). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.