Canaan, NH Weather & Growing Conditions
Today
82°F
Areas Of Fog then Sunny
Areas of fog before 8am. Sunny, with a high near 82. West wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Areas Of Fog then Sunny | 5 to 10 mph W | 0% |
| Tonight | 58°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 SW | 7% |
| Thursday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SW | 39% |
| Thursday Night | 67°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 34% |
| Friday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 25% |
| Friday Night | 65°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 24% |
| Saturday | 85°F | Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph W | 48% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 42% |
| Sunday | 87°F | Sunny | 0 to 5 mph W | 10% |
| Sunday Night | 65°F | Mostly Clear | 0 to 5 mph W | 9% |
| Monday | 86°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph W | 31% |
| Monday Night | 62°F | Chance Showers And Thunderstorms | 5 mph W | 30% |
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 Aug 4, 2026.