Canaan, NH Weather & Growing Conditions
This Afternoon
70°F
Sunny
Sunny, with a high near 70. Northwest wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Sunny | 10 mph NW | 0% |
| Tonight | 41°F | Mostly Cloudy | 5 to 10 mph NW | 0% |
| Saturday | 64°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 43°F | Mostly Cloudy | 0 mph | 0% |
| Sunday | 58°F | Rain Showers | 0 to 5 mph SE | 89% |
| Sunday Night | 46°F | Rain Showers | 0 to 5 mph NE | 82% |
| Monday | 63°F | Mostly Sunny | 5 mph NW | 2% |
| Monday Night | 42°F | Partly Cloudy | 0 to 5 mph N | 1% |
| Tuesday | 61°F | Partly Sunny | 5 mph NE | 1% |
| Tuesday Night | 42°F | Mostly Cloudy | 0 to 5 mph E | 1% |
| Wednesday | 60°F | Mostly Sunny | 5 to 10 mph E | 2% |
| Wednesday Night | 42°F | Mostly Cloudy | 0 to 5 mph E | 9% |
| Thursday | 58°F | Slight Chance Rain Showers | 5 mph E | 22% |
| Thursday Night | 45°F | Chance Rain Showers | 0 to 5 mph NE | 27% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Canaan, NH
Last spring frost
May 21
First fall frost
Sep 26
Growing season
127 days
Hardiness zone
5a
Explore more for Canaan, NH: full frost dates · planting calendar · New Hampshire frost dates
Climate data from the nearest NOAA station, Grafton, Nh (0.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.