Somersworth, NH Weather & Growing Conditions
Tonight
44°F
Partly Cloudy
Partly cloudy, with a low around 44. Northwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 44°F | Partly Cloudy | 5 mph NW | 0% |
| Saturday | 65°F | Sunny | 0 to 5 mph N | 0% |
| Saturday Night | 45°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Sunday | 62°F | Rain Showers Likely | 0 to 5 mph S | 74% |
| Sunday Night | 49°F | Rain Showers | 0 to 5 mph NE | 78% |
| Monday | 66°F | Mostly Sunny | 5 to 10 mph N | 13% |
| Monday Night | 46°F | Partly Cloudy | 0 to 10 mph NE | 2% |
| Tuesday | 61°F | Partly Sunny | 5 to 10 mph NE | 2% |
| Tuesday Night | 44°F | Mostly Cloudy | 0 to 10 mph NE | 1% |
| Wednesday | 60°F | Mostly Sunny | 10 to 15 mph NE | 2% |
| Wednesday Night | 44°F | Mostly Cloudy | 0 to 10 mph NE | 8% |
| Thursday | 60°F | Chance Rain Showers | 5 to 10 mph NE | 27% |
| Thursday Night | 46°F | Chance Rain Showers | 5 to 10 mph NE | 27% |
| Friday | 64°F | Chance Rain Showers | 10 mph N | 31% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Somersworth, NH
Last spring frost
Apr 30
First fall frost
Oct 9
Growing season
161 days
Hardiness zone
6a
Explore more for Somersworth, NH: full frost dates · planting calendar · New Hampshire frost dates
Climate data from the nearest NOAA station, Rochester Skyhaven Ap, Nh (2.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.