Peterborough, NH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Peterborough, a community in Hillsborough County, New Hampshire.
Tonight
43°F
Partly Cloudy
Partly cloudy, with a low around 43. North wind 0 to 5 mph.
7-day forecast for Peterborough
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 43°F | Partly Cloudy | 0 to 5 mph N | 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 | 88% |
| Sunday Night | 47°F | Rain Showers | 0 to 5 mph NE | 85% |
| Monday | 62°F | Slight Chance Rain Showers then Mostly Sunny | 5 mph N | 15% |
| Monday Night | 43°F | Partly Cloudy | 0 to 5 mph NE | 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 | 6% |
| Wednesday Night | 42°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph NE | 20% |
| Thursday | 56°F | Chance Rain Showers | 5 to 10 mph NE | 28% |
| Thursday Night | 45°F | Chance Rain Showers | 5 mph NE | 29% |
| Friday | 63°F | Chance Rain Showers | 5 to 10 mph N | 31% |
Forecast source: National Weather Service (api.weather.gov) for Peterborough (42.877, -71.961). Updated through the day.
Growing snapshot for Peterborough
Last spring frost
May 5
First fall frost
Oct 6
Growing season
154 days
Hardiness zone
6a
More local growing data for Peterborough: nearby ZIP 03458 weather · frost dates · planting calendar · New Hampshire frost dates
Nearby towns & communities
Amherst
Antrim
Bennington
East Merrimack
Francestown
Goffstown
Greenville
Hancock
Hillsborough
Hudson
Klondike Corner
Manchester
Milford
Nashua
New Boston
Pinardville
South Hooksett
Wilton
Climate data from the nearest NOAA station, Jaffrey Silver Rch Airpark, Nh (5.3 mi from Peterborough). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.