S
M
T
W
T
F
S
26
63°
32°
27
61°
33°
28
61°
27°
29
48°
38°
30
53°
38°
1
54°
41°
2
58°
36°
3
48°
33°
4
56°
37°
5
56°
38°
6
55°
46°
7
60°
40°
8
55°
31°
9
57°
29°
10
55°
45°
11
62°
46°
12
56°
37°
13
56°
36°
14
66°
44°
15
66°
38°
16
72°
38°
17
79°
46°
18
66°
44°
19
63°
47°
20
85°
46°
21
62°
35°
22
64°
29°
23
62°
27°
24
65°
29°
25
55°
46°
26
73°
48°
27
67°
48°
28
54°
43°
29
56°
40°
30
50°
41°
31
48°
40°
1
53°
39°
2
61°
43°
3
67°
44°
4
70°
48°
5
65°
48°
6
67°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Grand Bay
Grand Bay's May 2026 forecast shows daily high temperatures ranging from 48° to 73°, with overnight lows between 39° and 48°. The average high for May is 61° with an average low of 44°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Grand Bay. See also: June | July | August.
