Londonderry, NH Weather & Growing Conditions
Today
76°F
Mostly Sunny
Mostly sunny. High near 76, with temperatures falling to around 69 in the afternoon. Southwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Mostly Sunny | 5 mph SW | 3% |
| Tonight | 55°F | Partly Cloudy | 5 mph SW | 2% |
| Thursday | 73°F | Mostly Cloudy then Chance Light Rain | 5 to 10 mph SW | 37% |
| Thursday Night | 59°F | Chance Light Rain | 0 to 5 mph SW | 41% |
| Friday | 70°F | Light Rain | 0 mph | 76% |
| Friday Night | 53°F | Light Rain | 0 mph | 88% |
| Saturday | 64°F | Light Rain Likely | 0 to 5 mph N | 71% |
| Saturday Night | 42°F | Chance Light Rain | 5 mph NW | 34% |
| Sunday | 58°F | Chance Light Rain then Partly Sunny | 5 mph NW | 28% |
| Sunday Night | 35°F | Partly Cloudy | 5 mph W | 6% |
| Monday | 54°F | Mostly Sunny then Slight Chance Light Rain | 5 to 10 mph W | 15% |
| Monday Night | 33°F | Partly Cloudy | 5 mph W | 13% |
| Tuesday | 57°F | Mostly Sunny | 5 to 10 mph SW | 8% |
| Tuesday Night | 33°F | Partly Cloudy | 5 mph W | 8% |
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 Nov 4, 2026.