Lebanon, NH Weather & Growing Conditions
Tonight
46°F
Mostly Cloudy
Mostly cloudy, with a low around 46. South wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Mostly Cloudy | 0 mph | 6% |
| Wednesday | 75°F | Partly Sunny | 0 to 5 mph SW | 4% |
| Wednesday Night | 51°F | Partly Cloudy | 0 mph | 1% |
| Thursday | 68°F | Light Rain Likely | 0 to 5 mph S | 72% |
| Thursday Night | 55°F | Scattered Rain Showers | 0 to 5 mph SW | 34% |
| Friday | 67°F | Chance Light Rain | 0 mph | 52% |
| Friday Night | 50°F | Light Rain Likely | 0 mph | 71% |
| Saturday | 61°F | Light Rain Likely | 0 to 5 mph NW | 67% |
| Saturday Night | 40°F | Chance Light Rain | 0 to 5 mph NW | 53% |
| Sunday | 56°F | Chance Light Rain | 5 to 10 mph W | 28% |
| Sunday Night | 32°F | Mostly Cloudy | 0 to 5 mph W | 11% |
| Monday | 53°F | Chance Light Rain | 0 to 10 mph NW | 25% |
| Monday Night | 30°F | Slight Chance Light Rain | 5 mph W | 24% |
| Tuesday | 54°F | Slight Chance Light Rain | 5 to 10 mph SW | 22% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lebanon, NH
Last spring frost
May 9
First fall frost
Oct 6
Growing season
148 days
Hardiness zone
5a
Explore more for Lebanon, NH: full frost dates · planting calendar · New Hampshire frost dates
Climate data from the nearest NOAA station, Lebanon Muni Ap, Nh (0.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.