Contoocook, NH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Contoocook, a community in Merrimack County, New Hampshire.
Tonight
42°F
Partly Cloudy
Partly cloudy, with a low around 42. Northwest wind 0 to 5 mph.
7-day forecast for Contoocook
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 42°F | Partly Cloudy | 0 to 5 mph NW | 0% |
| Saturday | 66°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 44°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 60°F | Rain Showers | 0 to 5 mph SE | 85% |
| Sunday Night | 47°F | Rain Showers | 0 mph | 82% |
| Monday | 64°F | Mostly Sunny | 0 to 5 mph N | 6% |
| Monday Night | 43°F | Partly Cloudy | 0 to 5 mph N | 2% |
| Tuesday | 61°F | Mostly Cloudy | 0 to 5 mph NE | 2% |
| Tuesday Night | 41°F | Mostly Cloudy | 0 to 5 mph NE | 1% |
| Wednesday | 60°F | Mostly Sunny | 5 to 10 mph NE | 3% |
| Wednesday Night | 41°F | Mostly Cloudy | 0 to 5 mph NE | 11% |
| Thursday | 58°F | Chance Rain Showers | 0 to 5 mph NE | 27% |
| Thursday Night | 44°F | Chance Rain Showers | 0 to 5 mph NE | 27% |
| Friday | 65°F | Chance Rain Showers | 0 to 5 mph N | 26% |
Forecast source: National Weather Service (api.weather.gov) for Contoocook (43.231, -71.713). Updated through the day.
Growing snapshot for Contoocook
Last spring frost
May 6
First fall frost
Oct 1
Growing season
146 days
Hardiness zone
5b
More local growing data for Contoocook: nearby ZIP 03229 weather · frost dates · planting calendar · New Hampshire frost dates
Nearby towns & communities
Bradford
Concord
Franklin
Henniker
Hooksett
Loudon
New London
Pittsfield
Suncook
Tilton Northfield
Warner
Climate data from the nearest NOAA station, Hopkinton Lake, Nh (2.6 mi from Contoocook). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.