Hillsborough, NH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hillsborough, a community in Hillsborough County, New Hampshire.
This Afternoon
65°F
Mostly Sunny
Mostly sunny, with a high near 65. South wind around 0 mph.
7-day forecast for Hillsborough
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 65°F | Mostly Sunny | 0 mph | 0% |
| Tonight | 44°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 54°F | Rain | 0 to 5 mph SE | 100% |
| Sunday Night | 45°F | Rain | 0 to 5 mph NE | 77% |
| Monday | 65°F | Patchy Fog then Mostly Sunny | 5 mph N | 0% |
| Monday Night | 41°F | Mostly Cloudy | 0 to 5 mph N | 0% |
| Tuesday | 61°F | Partly Sunny | 0 to 5 mph NE | 1% |
| Tuesday Night | 41°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Wednesday | 62°F | Mostly Sunny | 5 to 10 mph NE | 1% |
| Wednesday Night | 40°F | Partly Cloudy | 0 to 5 mph NE | 4% |
| Thursday | 61°F | Slight Chance Rain Showers | 0 to 5 mph NE | 18% |
| Thursday Night | 43°F | Chance Rain Showers | 0 to 5 mph NE | 31% |
| Friday | 61°F | Chance Rain Showers | 5 to 10 mph NE | 34% |
| Friday Night | 45°F | Chance Rain Showers | 5 to 10 mph N | 39% |
Forecast source: National Weather Service (api.weather.gov) for Hillsborough (43.116, -71.897). Updated through the day.
Growing snapshot for Hillsborough
Last spring frost
May 9
First fall frost
Oct 5
Growing season
148 days
Hardiness zone
6a
More local growing data for Hillsborough: nearby ZIP 03244 weather · frost dates · planting calendar · New Hampshire frost dates
Nearby towns & communities
Amherst
Antrim
Bennington
East Merrimack
Francestown
Goffstown
Greenville
Hancock
Hudson
Klondike Corner
Manchester
Milford
Nashua
New Boston
Peterborough
Pinardville
South Hooksett
Wilton
Climate data from the nearest NOAA station, Weare 2 Ne, Nh (8.4 mi from Hillsborough). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.