Hillsborough, NH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hillsborough, a community in Hillsborough County, New Hampshire.
Today
83°F
Sunny
Sunny, with a high near 83. West wind around 5 mph.
7-day forecast for Hillsborough
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Sunny | 5 mph W | 0% |
| Tonight | 58°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Wednesday | 84°F | Partly Sunny | 0 to 5 mph SW | 0% |
| Wednesday Night | 65°F | Partly Cloudy | 0 to 5 mph SW | 7% |
| Thursday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SW | 43% |
| Thursday Night | 68°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SW | 37% |
| Friday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 25% |
| Friday Night | 66°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 24% |
| Saturday | 86°F | Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph W | 44% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph W | 38% |
| Sunday | 87°F | Sunny | 0 to 5 mph W | 10% |
| Sunday Night | 66°F | Mostly Clear | 0 to 5 mph W | 9% |
| Monday | 87°F | Sunny then Slight Chance Rain Showers | 0 to 10 mph W | 18% |
| Monday Night | 63°F | Slight Chance Rain Showers then Partly Cloudy | 5 to 10 mph W | 18% |
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 Aug 4, 2026.