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
67°F
Sunny
Sunny, with a high near 67. North wind around 0 mph.
7-day forecast for East Merrimack
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 67°F | Sunny | 0 mph | 0% |
| Tonight | 44°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Sunday | 59°F | Mostly Cloudy then Rain | 0 to 5 mph SE | 92% |
| Sunday Night | 45°F | Rain then Rain Showers Likely | 0 to 5 mph NE | 85% |
| Monday | 66°F | Partly Sunny | 5 mph N | 5% |
| Monday Night | 43°F | Mostly Cloudy | 0 to 5 mph N | 0% |
| Tuesday | 62°F | Partly Sunny | 5 mph NE | 1% |
| Tuesday Night | 42°F | Mostly Cloudy | 0 to 5 mph NE | 1% |
| Wednesday | 62°F | Partly Sunny | 5 to 10 mph NE | 1% |
| Wednesday Night | 41°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 5 mph NE | 16% |
| Thursday | 61°F | Chance Rain Showers | 5 to 10 mph NE | 31% |
| Thursday Night | 43°F | Chance Rain Showers | 5 to 10 mph N | 34% |
| Friday | 63°F | Chance Rain Showers | 10 mph N | 34% |
| Friday Night | 44°F | Chance Rain Showers | 5 to 10 mph N | 34% |
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
6a
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
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 Sep 19, 2026.