Canaan, NH Weather & Growing Conditions
Overnight
47°F
Partly Cloudy
Partly cloudy, with a low around 47. South wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 47°F | Partly Cloudy | 0 mph | 2% |
| Wednesday | 71°F | Mostly Sunny | 0 to 5 mph SW | 2% |
| Wednesday Night | 50°F | Partly Cloudy | 0 to 5 mph S | 2% |
| Thursday | 65°F | Light Rain | 5 mph S | 76% |
| Thursday Night | 54°F | Chance Light Rain | 0 to 5 mph SW | 41% |
| Friday | 65°F | Chance Light Rain | 0 mph | 33% |
| Friday Night | 48°F | Light Rain Likely | 0 mph | 67% |
| Saturday | 58°F | Chance Light Rain | 0 to 5 mph N | 50% |
| Saturday Night | 39°F | Chance Light Rain | 0 to 5 mph NW | 44% |
| Sunday | 51°F | Chance Light Rain | 5 mph NW | 34% |
| Sunday Night | 32°F | Mostly Cloudy then Slight Chance Light Rain | 5 mph W | 15% |
| Monday | 47°F | Slight Chance Light Rain | 5 to 10 mph W | 24% |
| Monday Night | 28°F | Slight Chance Light Rain then Partly Cloudy | 5 mph W | 16% |
| Tuesday | 50°F | Mostly Sunny | 5 to 10 mph W | 11% |
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 (8.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.