Bristol, NH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bristol, a community in Grafton County, New Hampshire.
Today
83°F
Sunny
Sunny, with a high near 83. West wind 5 to 10 mph.
7-day forecast for Bristol
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Sunny | 5 to 10 mph W | 0% |
| Tonight | 59°F | Mostly Clear then Areas Of Fog | 0 to 5 mph W | 0% |
| Wednesday | 86°F | Areas Of Fog then Partly Sunny | 0 to 5 mph W | 0% |
| Wednesday Night | 64°F | Partly Cloudy | 0 to 5 mph W | 6% |
| Thursday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 39% |
| Thursday Night | 68°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 34% |
| Friday | 89°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 23% |
| Friday Night | 66°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 22% |
| Saturday | 86°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 45% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 39% |
| Sunday | 87°F | Sunny | 0 to 5 mph W | 10% |
| Sunday Night | 65°F | Mostly Clear | 0 to 5 mph W | 9% |
| Monday | 87°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph W | 29% |
| Monday Night | 63°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 28% |
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 Aug 4, 2026.