S
M
T
W
T
F
S
26
64°
44°
27
62°
44°
28
63°
51°
29
64°
49°
30
65°
46°
1
66°
52°
2
68°
55°
3
74°
57°
4
76°
58°
5
77°
58°
6
77°
57°
7
71°
57°
8
74°
56°
9
77°
59°
10
78°
60°
11
80°
60°
12
75°
59°
13
70°
54°
14
69°
56°
15
73°
58°
16
79°
53°
17
73°
52°
18
72°
53°
19
71°
52°
20
76°
60°
21
80°
58°
22
82°
52°
23
76°
52°
24
72°
53°
25
74°
54°
26
74°
54°
27
75°
59°
28
77°
63°
29
75°
64°
30
84°
65°
31
84°
60°
1
83°
56°
2
78°
56°
3
77°
58°
4
83°
63°
5
83°
66°
6
85°
66°
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 62° to 85°, with overnight lows between 44° and 66°. The average high for May is 75° with an average low of 56°. 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.
