S
M
T
W
T
F
S
26
56°
44°
27
70°
38°
28
61°
51°
29
61°
51°
30
64°
44°
1
66°
36°
2
58°
43°
3
63°
38°
4
77°
40°
5
84°
56°
6
69°
56°
7
69°
53°
8
71°
40°
9
69°
51°
10
75°
48°
11
64°
46°
12
71°
39°
13
71°
52°
14
60°
48°
15
72°
51°
16
83°
46°
17
89°
59°
18
96°
63°
19
97°
68°
20
92°
67°
21
71°
54°
22
61°
50°
23
53°
49°
24
64°
50°
25
77°
62°
26
77°
66°
27
76°
63°
28
80°
54°
29
79°
50°
30
68°
52°
31
71°
54°
1
72°
52°
2
71°
55°
3
77°
54°
4
79°
57°
5
80°
58°
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 68° to 82°, with overnight lows between 50° and 66°. The average high for May is 76° with an average low of 57°. 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.
