S
M
T
W
T
F
S
26
59°
35°
27
71°
35°
28
63°
51°
29
59°
46°
30
51°
37°
1
50°
35°
2
48°
35°
3
57°
33°
4
74°
48°
5
73°
46°
6
48°
43°
7
52°
32°
8
56°
35°
9
63°
41°
10
61°
37°
11
54°
33°
12
58°
33°
13
69°
44°
14
49°
42°
15
67°
43°
16
78°
62°
17
76°
57°
18
90°
70°
19
88°
68°
20
74°
42°
21
55°
40°
22
61°
48°
23
68°
49°
24
67°
52°
25
68°
53°
26
69°
52°
27
69°
53°
28
70°
52°
29
66°
50°
30
74°
56°
31
73°
55°
1
68°
52°
2
69°
56°
3
68°
56°
4
70°
55°
5
69°
55°
6
71°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Port Gibson
Port Gibson's May 2026 forecast shows daily high temperatures ranging from 55° to 90°, with overnight lows between 40° and 70°. The average high for May is 71° with an average low of 54°. 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 Port Gibson. See also: June | July | August.
