Hillsborough, NH Weather & Growing Conditions
Overnight
46°F
Partly Cloudy
Partly cloudy, with a low around 46. Northwest wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 65°F | Sunny | 0 mph | 0% |
| Saturday Night | 43°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 56°F | Chance Rain Showers then Rain | 0 to 5 mph SE | 96% |
| Sunday Night | 43°F | Rain then Chance Rain Showers | 0 to 5 mph NE | 89% |
| Monday | 63°F | Mostly Sunny | 5 mph N | 2% |
| Monday Night | 41°F | Mostly Cloudy | 0 to 5 mph N | 1% |
| Tuesday | 61°F | Partly Sunny | 0 to 5 mph NE | 1% |
| Tuesday Night | 40°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Wednesday | 61°F | Mostly Sunny | 5 to 10 mph NE | 1% |
| Wednesday Night | 40°F | Mostly Cloudy | 0 to 5 mph NE | 14% |
| Thursday | 60°F | Chance Rain Showers | 5 mph NE | 32% |
| Thursday Night | 42°F | Chance Rain Showers | 0 to 5 mph NE | 32% |
| Friday | 62°F | Chance Rain Showers | 5 to 10 mph N | 33% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hillsborough, NH
Last spring frost
May 9
First fall frost
Oct 5
Growing season
148 days
Hardiness zone
6a
Explore more for Hillsborough, NH: full frost dates · planting calendar · New Hampshire frost dates
Climate data from the nearest NOAA station, Weare 2 Ne, Nh (8.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.