Brattleboro, NH Weather & Growing Conditions
Overnight
45°F
Partly Cloudy
Partly cloudy, with a low around 45. South wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 45°F | Partly Cloudy | 0 to 5 mph S | 2% |
| Wednesday | 71°F | Sunny | 0 to 5 mph S | 2% |
| Wednesday Night | 52°F | Partly Cloudy | 5 mph S | 1% |
| Thursday | 66°F | Light Rain Likely | 5 to 10 mph S | 61% |
| Thursday Night | 57°F | Chance Light Rain | 0 to 5 mph S | 51% |
| Friday | 66°F | Light Rain Likely | 0 mph | 57% |
| Friday Night | 50°F | Light Rain Likely | 0 to 5 mph N | 70% |
| Saturday | 60°F | Chance Light Rain | 5 mph N | 44% |
| Saturday Night | 42°F | Chance Light Rain | 5 mph NW | 40% |
| Sunday | 53°F | Chance Light Rain then Partly Sunny | 5 mph NW | 29% |
| Sunday Night | 34°F | Partly Cloudy | 5 mph W | 9% |
| Monday | 50°F | Slight Chance Light Rain | 5 to 10 mph W | 16% |
| Monday Night | 31°F | Partly Cloudy | 5 mph W | 10% |
| Tuesday | 54°F | Mostly Sunny | 5 to 10 mph SW | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Brattleboro, NH
Last spring frost
May 14
First fall frost
Oct 1
Growing season
138 days
Hardiness zone
5b
Explore more for Brattleboro, NH: full frost dates · planting calendar · New Hampshire frost dates
Climate data from the nearest NOAA station, Keene, Nh (10.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.