S
M
T
W
T
F
S
26
86°
71°
27
87°
71°
28
86°
71°
29
89°
70°
30
79°
69°
1
70°
57°
2
72°
54°
3
76°
49°
4
79°
52°
5
82°
59°
6
86°
72°
7
78°
70°
8
83°
67°
9
74°
62°
10
81°
65°
11
77°
66°
12
82°
66°
13
85°
64°
14
88°
64°
15
88°
66°
16
85°
68°
17
85°
71°
18
88°
72°
19
89°
75°
20
86°
70°
21
82°
70°
22
88°
73°
23
74°
69°
24
74°
69°
25
82°
71°
26
87°
68°
27
87°
72°
28
87°
73°
29
89°
71°
30
90°
73°
31
92°
74°
1
89°
74°
2
91°
73°
3
88°
73°
4
85°
71°
5
85°
73°
6
87°
74°
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 85° to 92°, with overnight lows between 71° and 74°. The average high for May is 88° with an average low of 73°. 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.
