Nashua, NH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Nashua, a city in Hillsborough County, New Hampshire.
Tonight
45°F
Partly Cloudy
Partly cloudy, with a low around 45. Southeast wind around 0 mph.
7-day forecast for Nashua
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 45°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 58°F | Rain | 0 to 5 mph SE | 100% |
| Sunday Night | 48°F | Rain | 0 to 5 mph NE | 79% |
| Monday | 68°F | Mostly Sunny | 5 mph N | 0% |
| Monday Night | 46°F | Mostly Cloudy | 0 to 5 mph N | 0% |
| Tuesday | 63°F | Partly Sunny | 5 mph NE | 1% |
| Tuesday Night | 44°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Wednesday | 63°F | Mostly Sunny | 5 to 10 mph NE | 1% |
| Wednesday Night | 43°F | Partly Cloudy then Slight Chance Rain Showers | 0 to 5 mph NE | 15% |
| Thursday | 63°F | Slight Chance Rain Showers | 5 to 10 mph NE | 20% |
| Thursday Night | 44°F | Chance Rain Showers | 5 to 10 mph NE | 33% |
| Friday | 63°F | Chance Rain Showers | 10 mph N | 39% |
| Friday Night | 46°F | Chance Rain Showers | 10 mph N | 40% |
| Saturday | 66°F | Chance Rain Showers | 10 mph N | 39% |
Forecast source: National Weather Service (api.weather.gov) for Nashua (42.749, -71.491). Updated through the day.
Growing snapshot for Nashua
Last spring frost
Apr 29
First fall frost
Oct 8
Growing season
162 days
Hardiness zone
6a
More local growing data for Nashua: nearby ZIP 03062 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
New Boston
Peterborough
Pinardville
South Hooksett
Wilton
Climate data from the nearest NOAA station, Nashua Cwsu, Nh (1.4 mi from Nashua). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.