Peterborough, NH Weather & Growing Conditions
Tonight
43°F
Partly Cloudy
Partly cloudy, with a low around 43. Northwest wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 43°F | Partly Cloudy | 0 to 5 mph NW | 0% |
| Saturday | 65°F | Mostly Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 45°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 58°F | Rain Showers | 0 to 5 mph S | 87% |
| Sunday Night | 47°F | Rain Showers | 0 to 5 mph E | 85% |
| Monday | 63°F | Mostly Sunny | 5 mph N | 14% |
| Monday Night | 43°F | Partly Cloudy | 0 to 5 mph N | 3% |
| Tuesday | 59°F | Partly Sunny | 5 mph NE | 3% |
| Tuesday Night | 42°F | Mostly Cloudy | 0 to 5 mph NE | 2% |
| Wednesday | 58°F | Mostly Sunny | 5 to 10 mph NE | 5% |
| Wednesday Night | 42°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 5 mph NE | 20% |
| Thursday | 56°F | Chance Rain Showers | 5 to 10 mph NE | 28% |
| Thursday Night | 45°F | Chance Rain Showers | 0 to 5 mph NE | 29% |
| Friday | 63°F | Chance Rain Showers | 5 to 10 mph N | 30% |
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 (11 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.