S
M
T
W
T
F
S
30
62°
48°
31
62°
47°
1
64°
49°
2
65°
54°
3
66°
52°
4
68°
54°
5
62°
56°
6
70°
53°
7
71°
52°
8
66°
46°
9
63°
46°
10
63°
50°
11
67°
52°
12
68°
52°
13
65°
48°
14
67°
51°
15
69°
51°
16
66°
52°
17
67°
53°
18
66°
52°
19
67°
52°
20
68°
50°
21
66°
50°
22
67°
44°
23
61°
47°
24
56°
48°
25
57°
45°
26
56°
41°
27
56°
41°
28
55°
43°
29
57°
43°
30
55°
41°
1
55°
40°
2
54°
39°
3
53°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Grand Bay-Westfield
Grand Bay-Westfield's September 2026 forecast shows daily high temperatures ranging from 53° to 71°, with overnight lows between 39° and 56°. The average high for September is 63° with an average low of 48°. 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 Grand Bay-Westfield. See also: October | November | December.
