The Weather Network
Weather
Maps
News
Video
|
Welcome
Monthly
⋮
Current
Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Brunswick, ME
Content continues below
September
Average Temperature
High
21°
Feels 22
Low
11°
Feels 10
Average Precipitation
8 Days
Rain amount
64.4mm
Snow amount
0cm
Content continues below
Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
3
4
25°
5
21°
6
21°
7
23°
8
21°
9
19°
10
24°
11
22°
12
21°
13
21°
14
22°
15
22°
16
22°
17
21°
18
21°
19
20
21
22
23
24
25
26
27
28
29
30
Forecast
Friday, September 4, 2026
Day
25°
Feels 25
Wind
13 km/h NW
Gust
20 km/h
Humidity
65%
P.O.P
40%
Rain
<1 mm
Night
16°
Feels 15
Wind
16 km/h NW
Gust
24 km/h
Humidity
94%
P.O.P
20%
Historical Averages
Sep 4
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.