S
M
T
W
T
F
S
26
66°
43°
27
57°
43°
28
52°
37°
29
57°
37°
30
52°
39°
1
54°
34°
2
68°
32°
3
72°
50°
4
64°
36°
5
54°
30°
6
52°
36°
7
63°
32°
8
77°
39°
9
64°
37°
10
64°
36°
11
75°
32°
12
77°
55°
13
75°
41°
14
81°
52°
15
91°
54°
16
82°
50°
17
84°
59°
18
64°
50°
19
52°
39°
20
59°
36°
21
66°
46°
22
59°
48°
23
70°
52°
24
86°
52°
25
90°
63°
26
88°
68°
27
90°
63°
28
88°
64°
29
85°
63°
30
84°
59°
31
85°
62°
1
84°
57°
2
83°
60°
3
80°
58°
4
79°
59°
5
83°
61°
6
82°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in St. James
St. James's May 2026 forecast shows daily high temperatures ranging from 79° to 90°, with overnight lows between 57° and 64°. The average high for May is 84° with an average low of 60°. 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 St. James. See also: June | July | August.
