Bristol, NH Weather & Growing Conditions
This Afternoon
64°F
Sunny
Sunny, with a high near 64. Northwest wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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.