East Merrimack, NH Weather & Growing Conditions

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

Today

77°F

Mostly Sunny

Mostly sunny. High near 77, with temperatures falling to around 69 in the afternoon. Southwest wind 0 to 5 mph.

7-day forecast for East Merrimack

When	Temp	Forecast	Wind	Precip
Today	77°F	Mostly Sunny	0 to 5 mph SW	3%
Tonight	55°F	Partly Cloudy	0 to 5 mph S	2%
Thursday	74°F	Mostly Cloudy then Chance Light Rain	5 to 10 mph S	39%
Thursday Night	60°F	Chance Light Rain	0 to 5 mph SW	40%
Friday	71°F	Light Rain Likely	0 mph	74%
Friday Night	53°F	Light Rain	0 mph	87%
Saturday	65°F	Light Rain Likely	0 to 5 mph N	69%
Saturday Night	42°F	Chance Light Rain	0 to 5 mph NW	34%
Sunday	59°F	Chance Light Rain then Partly Sunny	5 mph NW	28%
Sunday Night	35°F	Partly Cloudy	0 to 5 mph W	7%
Monday	55°F	Mostly Sunny then Slight Chance Light Rain	5 to 10 mph W	15%
Monday Night	32°F	Partly Cloudy	5 mph W	13%
Tuesday	58°F	Mostly Sunny	5 to 10 mph SW	8%
Tuesday Night	32°F	Partly Cloudy	5 mph W	8%

Forecast source: National Weather Service (api.weather.gov) for East Merrimack (42.872, -71.481). Updated through the day.

Growing snapshot for East Merrimack

Last spring frost

Apr 30

First fall frost

Oct 12

Growing season

165 days

Hardiness zone

More local growing data for East Merrimack: nearby ZIP 03052 weather · frost dates · planting calendar · New Hampshire frost dates

Nearby towns & communities

Amherst Antrim Bennington Francestown Goffstown Greenville Hancock Hillsborough Hudson Klondike Corner Manchester Milford Nashua New Boston Peterborough Pinardville South Hooksett Wilton

All New Hampshire locations ›

Climate data from the nearest NOAA station, Nashua 2 Nnw, Nh (3.8 mi from East Merrimack). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.