Colebrook, NH Weather & Growing Conditions
Today
77°F
Sunny
Sunny, with a high near 77. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Sunny | 5 to 15 mph NW | 0% |
| Tonight | 57°F | Mostly Clear then Areas Of Fog | 0 to 5 mph SW | 1% |
| Wednesday | 82°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph SW | 0% |
| Wednesday Night | 62°F | Partly Cloudy | 0 to 5 mph W | 3% |
| Thursday | 84°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 mph | 27% |
| Thursday Night | 65°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 0 mph | 25% |
| Friday | 82°F | Showers And Thunderstorms Likely | 0 mph | 69% |
| Friday Night | 62°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 mph | 62% |
| Saturday | 81°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 mph | 47% |
| Saturday Night | 62°F | Chance Showers And Thunderstorms | 0 mph | 42% |
| Sunday | 82°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 24% |
| Sunday Night | 62°F | Chance Showers And Thunderstorms | 0 mph | 35% |
| Monday | 80°F | Showers And Thunderstorms Likely | 0 to 5 mph W | 58% |
| Monday Night | 58°F | Showers And Thunderstorms Likely | 0 to 5 mph W | 55% |
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 Aug 4, 2026.