Canaan, NH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Canaan, a community in Grafton County, New Hampshire.
This Afternoon
72°F
Mostly Sunny
Mostly sunny. High near 72, with temperatures falling to around 63 in the afternoon. Southwest wind around 0 mph.
7-day forecast for Canaan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Mostly Sunny | 0 mph | 1% |
| Tonight | 50°F | Partly Cloudy | 0 mph | 1% |
| Thursday | 65°F | Rain Showers Likely | 5 mph S | 69% |
| Thursday Night | 54°F | Chance Rain Showers | 0 to 5 mph SW | 27% |
| Friday | 66°F | Mostly Cloudy then Chance Light Rain | 0 mph | 34% |
| Friday Night | 48°F | Chance Light Rain | 0 mph | 46% |
| Saturday | 61°F | Chance Light Rain | 0 to 5 mph NW | 48% |
| Saturday Night | 40°F | Light Rain Likely | 0 to 5 mph NW | 61% |
| Sunday | 52°F | Chance Light Rain | 10 mph NW | 48% |
| Sunday Night | 35°F | Mostly Cloudy | 5 to 10 mph W | 12% |
| Monday | 48°F | Chance Light Rain | 10 to 15 mph W | 27% |
| Monday Night | 30°F | Partly Cloudy | 5 to 10 mph NW | 14% |
| Tuesday | 53°F | Mostly Sunny | 5 to 10 mph W | 4% |
| Tuesday Night | 30°F | Partly Cloudy | 5 to 10 mph W | 8% |
Forecast source: National Weather Service (api.weather.gov) for Canaan (43.650, -72.016). Updated through the day.
Growing snapshot for Canaan
Last spring frost
May 21
First fall frost
Sep 26
Growing season
127 days
Hardiness zone
5a
More local growing data for Canaan: nearby ZIP 03741 weather · frost dates · planting calendar · New Hampshire frost dates
Nearby towns & communities
Ashland
Bethlehem
Bristol
Enfield
Lebanon
Lincoln
Lisbon
Littleton
Mountain Lakes
North Haverhill
North Woodstock
Plymouth
Woodsville
Climate data from the nearest NOAA station, Grafton, Nh (8.1 mi from Canaan). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.