Lebanon, NH Weather & Growing Conditions
Today
79°F
Sunny
Sunny, with a high near 79. West wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Sunny | 5 to 10 mph W | 0% |
| Tonight | 57°F | Mostly Clear then Areas Of Fog | 0 to 5 mph SW | 0% |
| Wednesday | 81°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph SW | 0% |
| Wednesday Night | 63°F | Partly Cloudy | 0 to 5 mph S | 7% |
| Thursday | 83°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 39% |
| Thursday Night | 66°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SW | 35% |
| Friday | 83°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 30% |
| Friday Night | 64°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 29% |
| Saturday | 82°F | Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph W | 48% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph W | 42% |
| Sunday | 83°F | Mostly Sunny | 0 to 5 mph W | 10% |
| Sunday Night | 64°F | Mostly Clear then Slight Chance Rain Showers | 5 mph SW | 15% |
| Monday | 82°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 36% |
| Monday Night | 61°F | Chance Showers And Thunderstorms | 5 to 10 mph W | 36% |
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 2
Growing season
145 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, Union Village Dam, Vt (7.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.