Hillsborough, NH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hillsborough, a community in Hillsborough County, New Hampshire.
Today
73°F
Sunny
Sunny. High near 73, with temperatures falling to around 66 in the afternoon. Southwest wind 0 to 5 mph.
7-day forecast for Hillsborough
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Sunny | 0 to 5 mph SW | 2% |
| Tonight | 54°F | Partly Cloudy | 5 mph SW | 2% |
| Thursday | 68°F | Light Rain Likely | 5 to 10 mph SW | 56% |
| Thursday Night | 57°F | Chance Light Rain | 0 to 5 mph SW | 39% |
| Friday | 68°F | Light Rain Likely | 0 mph | 63% |
| Friday Night | 51°F | Light Rain | 0 mph | 80% |
| Saturday | 61°F | Light Rain Likely | 0 to 5 mph N | 61% |
| Saturday Night | 41°F | Chance Light Rain | 0 to 5 mph NW | 41% |
| Sunday | 56°F | Chance Light Rain then Partly Sunny | 5 to 10 mph NW | 29% |
| Sunday Night | 34°F | Partly Cloudy | 5 mph W | 9% |
| Monday | 52°F | Slight Chance Light Rain | 5 to 10 mph W | 16% |
| Monday Night | 31°F | Partly Cloudy | 5 mph W | 12% |
| Tuesday | 55°F | Mostly Sunny | 5 to 10 mph W | 6% |
| Tuesday Night | 31°F | Partly Cloudy | 5 mph W | 5% |
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 Nov 4, 2026.