S
M
T
W
T
F
S
26
82°
65°
27
84°
63°
28
78°
60°
29
78°
54°
30
76°
54°
1
75°
57°
2
81°
56°
3
78°
57°
4
82°
61°
5
83°
61°
6
79°
59°
7
81°
62°
8
84°
64°
9
84°
63°
10
85°
64°
11
86°
64°
12
86°
65°
13
85°
63°
14
81°
62°
15
81°
62°
16
86°
64°
17
87°
65°
18
87°
65°
19
86°
64°
20
82°
60°
21
82°
59°
22
84°
61°
23
88°
66°
24
89°
67°
25
89°
67°
26
88°
68°
27
89°
68°
28
89°
67°
29
90°
69°
30
90°
69°
31
89°
68°
1
89°
67°
2
90°
69°
3
88°
67°
4
86°
65°
5
87°
66°
6
92°
68°
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 75° to 92°, with overnight lows between 54° and 69°. The average high for May is 85° with an average low of 63°. 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.
