Brunswick, ME Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brunswick, a community in Cumberland County, Maine.
Tonight
46°F
Mostly Clear
Mostly clear, with a low around 46. North wind 5 to 10 mph.
7-day forecast for Brunswick
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Mostly Clear | 5 to 10 mph N | 0% |
| Saturday | 66°F | Sunny | 5 to 10 mph NW | 0% |
| Saturday Night | 46°F | Partly Cloudy | 0 to 10 mph SW | 0% |
| Sunday | 65°F | Chance Rain Showers | 0 to 10 mph S | 39% |
| Sunday Night | 47°F | Rain Showers Likely | 0 to 5 mph W | 55% |
| Monday | 67°F | Mostly Sunny | 5 to 10 mph N | 8% |
| Monday Night | 45°F | Partly Cloudy | 5 mph N | 0% |
| Tuesday | 65°F | Partly Sunny | 5 to 10 mph NE | 1% |
| Tuesday Night | 44°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Wednesday | 65°F | Mostly Sunny | 5 to 10 mph NE | 1% |
| Wednesday Night | 44°F | Partly Cloudy | 0 to 5 mph NE | 6% |
| Thursday | 64°F | Partly Sunny then Slight Chance Rain Showers | 5 to 10 mph NE | 23% |
| Thursday Night | 46°F | Chance Rain Showers | 0 to 10 mph NE | 25% |
| Friday | 67°F | Chance Rain Showers | 10 mph N | 30% |
Forecast source: National Weather Service (api.weather.gov) for Brunswick (43.887, -69.943). Updated through the day.
Growing snapshot for Brunswick
Last spring frost
May 2
First fall frost
Oct 10
Growing season
160 days
Hardiness zone
5b
More local growing data for Brunswick: nearby ZIP 04011 weather · frost dates · planting calendar · Maine frost dates
Nearby towns & communities
Bridgton
Casco
Cousins Island
Cumberland Center
Dunstan
Falmouth
Falmouth Foreside
Freeport
Gorham
Gray
Little Falls
Littlejohn Island
Naples
North Windham
Oak Hill
Portland
South Portland
South Windham
Standish
Steep Falls
Westbrook
Yarmouth
Climate data from the nearest NOAA station, Brunswick Nas, Me (2 mi from Brunswick). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.