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
86°F
Sunny
Sunny, with a high near 86. West wind 0 to 5 mph.
7-day forecast for East Merrimack
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 0 to 5 mph W | 0% |
| Tonight | 59°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Wednesday | 87°F | Mostly Sunny | 0 to 5 mph SW | 0% |
| Wednesday Night | 66°F | Partly Cloudy | 0 to 5 mph SW | 7% |
| Thursday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 38% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SW | 33% |
| Friday | 91°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 27% |
| Friday Night | 68°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 26% |
| Saturday | 88°F | Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph W | 44% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph W | 39% |
| Sunday | 89°F | Sunny | 0 to 5 mph W | 10% |
| Sunday Night | 67°F | Mostly Clear | 0 to 5 mph W | 9% |
| Monday | 89°F | Sunny | 0 to 10 mph W | 14% |
| Monday Night | 66°F | Mostly Clear | 0 to 10 mph W | 14% |
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 Aug 4, 2026.