Harman US

Pittsfield, NH Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Pittsfield, a community in Merrimack County, New Hampshire.

Overnight
43°F
Partly Cloudy
Partly cloudy, with a low around 43. North wind around 0 mph.

7-day forecast for Pittsfield

WhenTempForecastWindPrecip
Overnight 43°F Partly Cloudy 0 mph 0%
Saturday 66°F Sunny 0 to 5 mph NW 0%
Saturday Night 44°F Partly Cloudy 0 to 5 mph S 0%
Sunday 60°F Rain Showers 0 to 5 mph SE 80%
Sunday Night 48°F Rain Showers 0 to 5 mph NE 79%
Monday 66°F Mostly Sunny 5 mph N 6%
Monday Night 44°F Mostly Cloudy 0 to 10 mph N 2%
Tuesday 61°F Partly Sunny 5 to 10 mph NE 2%
Tuesday Night 43°F Mostly Cloudy 0 to 10 mph NE 1%
Wednesday 60°F Mostly Sunny 10 mph NE 1%
Wednesday Night 43°F Mostly Cloudy 5 mph NE 8%
Thursday 58°F Chance Rain Showers 5 to 10 mph NE 26%
Thursday Night 45°F Chance Rain Showers 5 to 10 mph NE 26%
Friday 64°F Chance Rain Showers 10 mph N 27%

Forecast source: National Weather Service (api.weather.gov) for Pittsfield (43.300, -71.331). Updated through the day.

Growing snapshot for Pittsfield

Last spring frost
May 8
First fall frost
Oct 3
Growing season
146 days
Hardiness zone
5b

More local growing data for Pittsfield: nearby ZIP 03263 weather · frost dates · planting calendar · New Hampshire frost dates

Nearby towns & communities

All New Hampshire locations ›

Climate data from the nearest NOAA station, Concord Muni Ap, Nh (11.6 mi from Pittsfield). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.