S
M
T
W
T
F
S
30
73°
59°
31
72°
54°
1
72°
50°
2
68°
57°
3
77°
64°
4
68°
54°
5
72°
48°
6
82°
55°
7
73°
59°
8
66°
54°
9
70°
50°
10
68°
48°
11
72°
54°
12
73°
48°
13
70°
64°
14
77°
64°
15
69°
49°
16
66°
55°
17
67°
47°
18
63°
58°
19
69°
52°
20
70°
54°
21
71°
54°
22
71°
53°
23
74°
55°
24
73°
52°
25
68°
51°
26
68°
52°
27
69°
51°
28
64°
51°
29
64°
50°
30
63°
49°
1
63°
47°
2
62°
48°
3
63°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Gloucester
Gloucester's September 2026 forecast shows daily high temperatures ranging from 62° to 74°, with overnight lows between 47° and 58°. The average high for September is 67° with an average low of 52°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Gloucester. See also: October | November | December.
