Colebrook, NH Weather & Growing Conditions
This Afternoon
59°F
Sunny
Sunny, with a high near 59. West wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 59°F | Sunny | 0 to 5 mph W | 0% |
| Tonight | 38°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 56°F | Rain | 0 mph | 90% |
| Sunday Night | 39°F | Chance Light Rain then Patchy Fog | 0 mph | 49% |
| Monday | 56°F | Patchy Fog then Partly Sunny | 0 to 5 mph NW | 0% |
| Monday Night | 33°F | Partly Cloudy | 0 mph | 0% |
| Tuesday | 61°F | Mostly Sunny | 0 mph | 0% |
| Tuesday Night | 37°F | Mostly Clear | 0 mph | 0% |
| Wednesday | 62°F | Sunny | 0 mph | 0% |
| Wednesday Night | 37°F | Mostly Clear | 0 mph | 0% |
| Thursday | 64°F | Mostly Sunny | 0 mph | 4% |
| Thursday Night | 39°F | Slight Chance Rain Showers | 0 mph | 19% |
| Friday | 63°F | Chance Rain Showers | 0 mph | 28% |
| Friday Night | 42°F | Chance Rain Showers | 0 mph | 33% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Colebrook, NH
Last spring frost
May 31
First fall frost
Sep 21
Growing season
112 days
Hardiness zone
4a
Explore more for Colebrook, NH: full frost dates · planting calendar · New Hampshire frost dates
Climate data from the nearest NOAA station, Colebrook 3Sw, Nh (8.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.