Lebanon, NH Weather & Growing Conditions
Overnight
47°F
Partly Cloudy
Partly cloudy, with a low around 47. South wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 47°F | Partly Cloudy | 0 mph | 2% |
| Wednesday | 73°F | Mostly Sunny | 0 to 5 mph S | 2% |
| Wednesday Night | 52°F | Partly Cloudy | 5 mph S | 1% |
| Thursday | 67°F | Light Rain | 5 mph S | 83% |
| Thursday Night | 55°F | Chance Light Rain | 0 to 5 mph SW | 48% |
| Friday | 67°F | Chance Light Rain | 0 mph | 26% |
| Friday Night | 50°F | Light Rain Likely | 0 mph | 61% |
| Saturday | 60°F | Chance Light Rain | 0 to 5 mph N | 48% |
| Saturday Night | 42°F | Chance Light Rain | 0 to 5 mph NW | 43% |
| Sunday | 54°F | Chance Light Rain then Mostly Cloudy | 5 mph NW | 35% |
| Sunday Night | 34°F | Partly Cloudy then Slight Chance Light Rain | 5 mph W | 15% |
| Monday | 50°F | Slight Chance Light Rain | 5 to 10 mph W | 22% |
| Monday Night | 30°F | Partly Cloudy | 5 mph W | 14% |
| Tuesday | 53°F | Mostly Sunny | 5 to 10 mph SW | 10% |
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 (3.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.