S
M
T
W
T
F
S
26
43°
34°
27
45°
37°
28
47°
35°
29
47°
40°
30
44°
36°
1
45°
40°
2
49°
38°
3
45°
36°
4
48°
37°
5
48°
35°
6
46°
35°
7
47°
38°
8
48°
37°
9
49°
39°
10
51°
37°
11
51°
38°
12
50°
40°
13
52°
38°
14
51°
36°
15
46°
37°
16
47°
37°
17
47°
38°
18
48°
38°
19
48°
39°
20
49°
39°
21
48°
38°
22
49°
40°
23
49°
40°
24
50°
38°
25
49°
39°
26
49°
39°
27
51°
40°
28
50°
42°
29
51°
42°
30
52°
41°
31
52°
42°
1
53°
41°
2
52°
42°
3
53°
43°
4
53°
43°
5
54°
44°
6
55°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Port Graham
Port Graham's May 2026 forecast shows daily high temperatures ranging from 45° to 55°, with overnight lows between 35° and 44°. The average high for May is 50° with an average low of 39°. 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 Graham. See also: June | July | August.
