Peterborough, NH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Peterborough, a community in Hillsborough County, New Hampshire.
Today
81°F
Sunny
Sunny, with a high near 81. West wind 5 to 10 mph.
7-day forecast for Peterborough
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Sunny | 5 to 10 mph W | 0% |
| Tonight | 58°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Wednesday | 82°F | Partly Sunny | 0 to 5 mph SW | 0% |
| Wednesday Night | 65°F | Partly Cloudy | 0 to 5 mph SW | 7% |
| Thursday | 84°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SW | 50% |
| Thursday Night | 68°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SW | 44% |
| Friday | 85°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 29% |
| Friday Night | 66°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 27% |
| Saturday | 84°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph W | 39% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph W | 35% |
| Sunday | 84°F | Sunny | 0 to 5 mph W | 10% |
| Sunday Night | 66°F | Mostly Clear | 0 to 5 mph W | 9% |
| Monday | 84°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph W | 17% |
| Monday Night | 63°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 10 mph W | 17% |
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 Aug 4, 2026.