Henniker, NH Weather & Growing Conditions
Tonight
47°F
Mostly Cloudy
Mostly cloudy, with a low around 47. Southwest wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Mostly Cloudy | 0 mph | 3% |
| Wednesday | 73°F | Mostly Sunny | 0 to 5 mph SW | 5% |
| Wednesday Night | 53°F | Partly Cloudy | 5 mph SW | 2% |
| Thursday | 68°F | Scattered Rain Showers | 5 to 10 mph SW | 51% |
| Thursday Night | 57°F | Scattered Rain Showers | 0 to 5 mph SW | 27% |
| Friday | 66°F | Light Rain Likely | 0 mph | 63% |
| Friday Night | 51°F | Light Rain | 0 mph | 78% |
| Saturday | 60°F | Light Rain Likely | 0 to 5 mph NW | 68% |
| Saturday Night | 40°F | Chance Light Rain | 5 mph NW | 52% |
| Sunday | 56°F | Chance Light Rain | 5 to 10 mph W | 25% |
| Sunday Night | 35°F | Partly Cloudy | 5 mph W | 11% |
| Monday | 53°F | Slight Chance Light Rain | 5 to 10 mph W | 21% |
| Monday Night | 32°F | Slight Chance Light Rain | 5 mph W | 20% |
| Tuesday | 54°F | Slight Chance Light Rain then Mostly Sunny | 5 to 10 mph W | 15% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Henniker, NH
Last spring frost
May 6
First fall frost
Oct 1
Growing season
146 days
Hardiness zone
5b
Explore more for Henniker, NH: full frost dates · planting calendar · New Hampshire frost dates
Climate data from the nearest NOAA station, Hopkinton Lake, Nh (4.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.