Londonderry, NH Weather & Growing Conditions
Tonight
46°F
Partly Cloudy
Partly cloudy, with a low around 46. North wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 66°F | Sunny | 0 to 5 mph N | 0% |
| Saturday Night | 45°F | Partly Cloudy | 0 to 5 mph SE | 0% |
| Sunday | 61°F | Rain Showers | 0 to 5 mph SE | 77% |
| Sunday Night | 50°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 NE | 3% |
| Tuesday | 60°F | Mostly Cloudy | 5 mph NE | 3% |
| Tuesday Night | 44°F | Mostly Cloudy | 0 to 5 mph NE | 1% |
| Wednesday | 59°F | Mostly Sunny | 5 to 10 mph NE | 3% |
| Wednesday Night | 44°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 10 mph NE | 17% |
| Thursday | 58°F | Chance Rain Showers | 5 to 10 mph NE | 27% |
| Thursday Night | 46°F | Chance Rain Showers | 5 mph NE | 29% |
| Friday | 63°F | Chance Rain Showers | 5 to 10 mph N | 31% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Londonderry, NH
Last spring frost
Apr 21
First fall frost
Oct 19
Growing season
180 days
Hardiness zone
6a
Explore more for Londonderry, NH: full frost dates · planting calendar · New Hampshire frost dates
Climate data from the nearest NOAA station, Manchester Ap, Nh (5.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.