Plymouth, NH Weather & Growing Conditions
Today
77°F
Areas Of Fog then Sunny
Areas of fog before 8am. Sunny, with a high near 77. West wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Areas Of Fog then Sunny | 5 to 10 mph W | 0% |
| Tonight | 55°F | Mostly Clear then Areas Of Fog | 0 to 5 mph W | 0% |
| Wednesday | 80°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph W | 0% |
| Wednesday Night | 60°F | Partly Cloudy | 0 to 5 mph SW | 7% |
| Thursday | 82°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 40% |
| Thursday Night | 64°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 35% |
| Friday | 82°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 29% |
| Friday Night | 62°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 28% |
| Saturday | 81°F | Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph W | 45% |
| Saturday Night | 61°F | Chance Showers And Thunderstorms then Mostly Cloudy | 0 mph | 39% |
| Sunday | 82°F | Mostly Sunny | 0 to 5 mph W | 11% |
| Sunday Night | 61°F | Mostly Clear then Slight Chance Rain Showers | 0 to 5 mph W | 15% |
| Monday | 81°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph W | 39% |
| Monday Night | 57°F | Chance Showers And Thunderstorms | 5 mph W | 37% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Plymouth, NH
Last spring frost
May 12
First fall frost
Oct 6
Growing season
146 days
Hardiness zone
5a
Explore more for Plymouth, NH: full frost dates · planting calendar · New Hampshire frost dates
Climate data from the nearest NOAA station, Wentworth, Nh (6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.