Peterborough, NH Weather & Growing Conditions
Overnight
43°F
Partly Cloudy
Partly cloudy, with a low around 43. North wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 43°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 65°F | Mostly Sunny | 0 mph | 0% |
| Saturday Night | 42°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 56°F | Chance Rain Showers then Rain | 0 to 5 mph SE | 95% |
| Sunday Night | 42°F | Rain then Chance Rain Showers | 0 to 5 mph NE | 89% |
| Monday | 63°F | Mostly Sunny | 5 mph N | 3% |
| Monday Night | 41°F | Mostly Cloudy | 0 to 5 mph N | 0% |
| Tuesday | 60°F | Partly Sunny | 0 to 5 mph NE | 1% |
| Tuesday Night | 40°F | Mostly Cloudy | 0 to 5 mph NE | 1% |
| Wednesday | 60°F | Partly Sunny | 5 to 10 mph NE | 1% |
| Wednesday Night | 39°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 10 mph NE | 17% |
| Thursday | 58°F | Chance Rain Showers | 5 to 10 mph NE | 32% |
| Thursday Night | 41°F | Chance Rain Showers | 5 to 10 mph NE | 33% |
| Friday | 61°F | Chance Rain Showers | 10 mph N | 33% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Peterborough, NH
Last spring frost
May 5
First fall frost
Oct 6
Growing season
154 days
Hardiness zone
6a
Explore more for Peterborough, NH: full frost dates · planting calendar · New Hampshire frost dates
Climate data from the nearest NOAA station, Jaffrey Silver Rch Airpark, Nh (5.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.