S
M
T
W
T
F
S
27
81°
66°
28
82°
63°
29
80°
64°
30
84°
66°
1
85°
65°
2
83°
65°
3
84°
64°
4
84°
63°
5
83°
62°
6
84°
63°
7
83°
64°
8
84°
63°
9
83°
64°
10
83°
63°
11
81°
63°
12
82°
62°
13
82°
63°
14
81°
62°
15
82°
62°
16
82°
60°
17
81°
53°
18
80°
52°
19
74°
53°
20
74°
54°
21
75°
55°
22
77°
57°
23
79°
57°
24
80°
50°
25
74°
52°
26
71°
56°
27
73°
55°
28
75°
51°
29
78°
48°
30
71°
55°
31
71°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Grand Bay
Grand Bay's October 2026 forecast shows daily high temperatures ranging from 71° to 85°, with overnight lows between 48° and 66°. The average high for October is 80° with an average low of 59°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Grand Bay. See also: November | December | January.