S
M
T
W
T
F
S
26
84°
61°
27
81°
65°
28
73°
64°
29
81°
64°
30
72°
58°
1
66°
54°
2
70°
48°
3
71°
41°
4
80°
46°
5
78°
57°
6
80°
66°
7
73°
54°
8
70°
52°
9
77°
58°
10
84°
63°
11
79°
63°
12
79°
60°
13
82°
54°
14
76°
52°
15
82°
50°
16
85°
62°
17
90°
64°
18
89°
70°
19
90°
68°
20
87°
69°
21
87°
69°
22
85°
63°
23
81°
64°
24
82°
65°
25
84°
66°
26
83°
64°
27
82°
62°
28
82°
63°
29
85°
64°
30
84°
61°
31
86°
64°
1
88°
66°
2
88°
66°
3
86°
65°
4
83°
63°
5
84°
64°
6
85°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Port Birmingham
Port Birmingham's May 2026 forecast shows daily high temperatures ranging from 81° to 90°, with overnight lows between 61° and 70°. The average high for May is 85° with an average low of 65°. 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 Birmingham. See also: June | July | August.