East Merrimack, NH Weather & Growing Conditions
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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Mostly Sunny | 0 to 5 mph SW | 3% |
| Tonight | 56°F | Partly Cloudy | 0 to 5 mph S | 2% |
| Thursday | 74°F | Mostly Cloudy then Chance Light Rain | 5 to 10 mph S | 38% |
| Thursday Night | 60°F | Chance Light Rain | 0 to 5 mph SW | 40% |
| Friday | 71°F | Light Rain Likely | 0 mph | 74% |
| Friday Night | 54°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 | 35% |
| Sunday | 59°F | Chance Light Rain then Mostly 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 | 7% |
| Tuesday Night | 32°F | Partly Cloudy | 5 mph W | 8% |
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 (4.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.