Peterborough, NH Weather & Growing Conditions
Tonight
48°F
Mostly Cloudy
Mostly cloudy, with a low around 48. South wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 48°F | Mostly Cloudy | 0 mph | 2% |
| Wednesday | 71°F | Mostly Sunny | 0 to 5 mph SW | 4% |
| Wednesday Night | 54°F | Partly Cloudy | 5 mph SW | 2% |
| Thursday | 67°F | Scattered Rain Showers | 5 to 10 mph SW | 50% |
| Thursday Night | 58°F | Scattered Rain Showers | 0 to 5 mph SW | 48% |
| Friday | 66°F | Light Rain Likely | 0 to 5 mph S | 73% |
| Friday Night | 51°F | Light Rain | 0 mph | 79% |
| Saturday | 60°F | Light Rain Likely | 0 to 5 mph NW | 70% |
| Saturday Night | 40°F | Chance Light Rain | 0 to 5 mph W | 51% |
| Sunday | 56°F | Chance Light Rain then Mostly Sunny | 5 to 10 mph W | 25% |
| Sunday Night | 34°F | Partly Cloudy | 0 to 5 mph W | 10% |
| Monday | 53°F | Slight Chance Light Rain | 5 to 10 mph W | 20% |
| Monday Night | 32°F | Slight Chance Light Rain | 5 mph W | 20% |
| Tuesday | 54°F | Mostly Sunny | 5 to 15 mph W | 14% |
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 Nov 4, 2026.