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Franklin, NH Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Franklin, a city in Merrimack County, New Hampshire.

Overnight
46°F
Partly Cloudy
Partly cloudy, with a low around 46. Wind around 0 mph.

7-day forecast for Franklin

WhenTempForecastWindPrecip
Overnight 46°F Partly Cloudy 0 mph 2%
Wednesday 75°F Mostly Sunny 0 to 5 mph SW 3%
Wednesday Night 50°F Partly Cloudy 0 mph 2%
Thursday 70°F Light Rain Likely 0 to 5 mph S 64%
Thursday Night 56°F Chance Light Rain 0 to 5 mph SW 32%
Friday 69°F Chance Light Rain 0 mph 48%
Friday Night 51°F Light Rain 0 mph 77%
Saturday 62°F Light Rain Likely 0 to 5 mph N 62%
Saturday Night 42°F Chance Light Rain 0 to 5 mph NW 39%
Sunday 56°F Chance Light Rain then Partly Sunny 5 mph NW 32%
Sunday Night 35°F Partly Cloudy 0 to 5 mph W 9%
Monday 52°F Slight Chance Light Rain 5 to 10 mph W 16%
Monday Night 32°F Partly Cloudy 5 mph W 13%
Tuesday 55°F Mostly Sunny 5 to 10 mph W 8%

Forecast source: National Weather Service (api.weather.gov) for Franklin (43.454, -71.670). Updated through the day.

Growing snapshot for Franklin

Last spring frost
May 7
First fall frost
Oct 3
Growing season
148 days
Hardiness zone
5b

More local growing data for Franklin: nearby ZIP 03235 weather · frost dates · planting calendar · New Hampshire frost dates

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Climate data from the nearest NOAA station, Franklin Falls Dam, Nh (1.8 mi from Franklin). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.