Harman US

East Merrimack, NH Weather & Growing Conditions

Tonight
45°F
Partly Cloudy
Partly cloudy, with a low around 45. North wind 0 to 5 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 45°F Partly Cloudy 0 to 5 mph N 0%
Saturday 67°F Sunny 0 to 5 mph NE 0%
Saturday Night 46°F Partly Cloudy 0 to 5 mph SE 0%
Sunday 62°F Rain Showers 0 to 5 mph SE 78%
Sunday Night 49°F Rain Showers 0 to 5 mph NE 78%
Monday 65°F Slight Chance Rain Showers then Mostly Sunny 5 mph N 22%
Monday Night 46°F Partly Cloudy 0 to 5 mph N 3%
Tuesday 61°F Mostly Cloudy 5 mph NE 3%
Tuesday Night 44°F Mostly Cloudy 0 to 5 mph NE 2%
Wednesday 60°F Mostly Sunny 5 to 10 mph NE 3%
Wednesday Night 44°F Mostly Cloudy then Slight Chance Rain Showers 0 to 5 mph NE 18%
Thursday 59°F Chance Rain Showers 5 to 10 mph NE 27%
Thursday Night 46°F Chance Rain Showers 0 to 5 mph NE 29%
Friday 64°F Chance Rain Showers 5 mph N 31%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for East Merrimack, NH

Last spring frost
Apr 30
First fall frost
Oct 12
Growing season
165 days
Hardiness zone
6a

Explore more for East Merrimack, NH: full frost dates · planting calendar · New Hampshire frost dates

Climate data from the nearest NOAA station, Nashua 2 Nnw, Nh (3.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.