Colebrook, NH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Colebrook, a community in Essex County, New Hampshire.
Tonight
49°F
Light Rain then Chance Rain Showers
Rain before 9pm, then a chance of rain showers between 9pm and 3am. Cloudy, with a low around 49. South wind around 0 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Colebrook
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 49°F | Light Rain then Chance Rain Showers | 0 mph | 75% |
| Wednesday | 70°F | Partly Sunny | 0 mph | 5% |
| Wednesday Night | 51°F | Mostly Cloudy | 0 mph | 2% |
| Thursday | 65°F | Light Rain Likely | 0 mph | 69% |
| Thursday Night | 51°F | Light Rain Likely | 0 mph | 72% |
| Friday | 62°F | Chance Light Rain | 0 mph | 33% |
| Friday Night | 47°F | Light Rain Likely | 0 mph | 57% |
| Saturday | 55°F | Light Rain Likely | 0 mph | 63% |
| Saturday Night | 39°F | Light Rain Likely | 0 mph | 60% |
| Sunday | 47°F | Chance Light Rain | 0 mph | 38% |
| Sunday Night | 33°F | Slight Chance Light Rain then Slight Chance Rain And Snow | 0 mph | 23% |
| Monday | 45°F | Chance Rain And Snow | 0 mph | 38% |
| Monday Night | 30°F | Chance Rain And Snow | 0 mph | 37% |
| Tuesday | 45°F | Chance Rain And Snow | 0 to 5 mph SW | 37% |
Forecast source: National Weather Service (api.weather.gov) for Colebrook (44.895, -71.494). Updated through the day.
Growing snapshot for Colebrook
Last spring frost
May 31
First fall frost
Sep 21
Growing season
112 days
Hardiness zone
4a
More local growing data for Colebrook: nearby ZIP 05903 weather · frost dates · planting calendar · New Hampshire frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Colebrook 3Sw, Nh (5.6 mi from Colebrook). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.