Fitchburg, MA Weather & Growing Conditions
Tonight
45°F
Partly Cloudy
Partly cloudy, with a low around 45. North wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 45°F | Partly Cloudy | 6 mph N | 0% |
| Saturday | 65°F | Sunny | 3 mph NE | 0% |
| Saturday Night | 43°F | Partly Cloudy | 2 mph S | 2% |
| Sunday | 60°F | Rain Showers | 1 to 5 mph S | 86% |
| Sunday Night | 50°F | Rain Showers | 2 to 7 mph NE | 85% |
| Monday | 63°F | Slight Chance Rain Showers then Partly Sunny | 8 mph N | 17% |
| Monday Night | 46°F | Partly Cloudy | 2 to 7 mph N | 5% |
| Tuesday | 59°F | Partly Sunny | 9 mph NE | 5% |
| Tuesday Night | 44°F | Mostly Cloudy | 3 to 9 mph NE | 3% |
| Wednesday | 59°F | Partly Sunny | 9 to 13 mph NE | 6% |
| Wednesday Night | 45°F | Mostly Cloudy then Slight Chance Rain Showers | 6 to 10 mph NE | 20% |
| Thursday | 58°F | Chance Rain Showers | 10 mph NE | 27% |
| Thursday Night | 47°F | Chance Rain Showers | 6 to 10 mph NE | 32% |
| Friday | 63°F | Chance Rain Showers | 10 mph N | 32% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fitchburg, MA
Last spring frost
May 1
First fall frost
Oct 9
Growing season
162 days
Hardiness zone
6a
Explore more for Fitchburg, MA: full frost dates · planting calendar · Massachusetts frost dates
Climate data from the nearest NOAA station, Fitchburg Coop, Ma (2.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.