Lebanon, NH Weather & Growing Conditions
Tonight
45°F
Partly Cloudy
Partly cloudy, with a low around 45. Southeast wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 45°F | Partly Cloudy | 0 to 5 mph SE | 0% |
| Sunday | 54°F | Rain | 0 to 5 mph NE | 100% |
| Sunday Night | 45°F | Rain then Patchy Fog | 0 to 5 mph NE | 77% |
| Monday | 64°F | Patchy Fog then Mostly Sunny | 5 mph N | 0% |
| Monday Night | 40°F | Mostly Cloudy | 0 to 5 mph N | 0% |
| Tuesday | 64°F | Partly Sunny | 0 to 5 mph NE | 0% |
| Tuesday Night | 41°F | Partly Cloudy | 0 mph | 0% |
| Wednesday | 64°F | Mostly Sunny | 0 to 5 mph E | 1% |
| Wednesday Night | 40°F | Partly Cloudy | 0 to 5 mph NE | 2% |
| Thursday | 64°F | Mostly Sunny then Slight Chance Rain Showers | 0 to 5 mph NE | 16% |
| Thursday Night | 42°F | Chance Rain Showers | 0 mph | 33% |
| Friday | 64°F | Chance Rain Showers | 0 to 5 mph N | 33% |
| Friday Night | 45°F | Chance Rain Showers | 5 mph N | 35% |
| Saturday | 66°F | Chance Rain Showers | 5 mph N | 34% |
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 Sep 20, 2026.