S
M
T
W
T
F
S
31
79°
52°
1
79°
61°
2
75°
55°
3
64°
45°
4
70°
39°
5
59°
43°
6
64°
41°
7
66°
37°
8
79°
50°
9
75°
55°
10
75°
54°
11
82°
52°
12
82°
63°
13
91°
61°
14
90°
64°
15
88°
64°
16
91°
61°
17
81°
63°
18
79°
61°
19
70°
61°
20
73°
55°
21
82°
57°
22
75°
55°
23
79°
52°
24
77°
50°
25
84°
46°
26
88°
50°
27
77°
45°
28
84°
43°
29
90°
50°
30
84°
61°
1
86°
59°
2
90°
59°
3
91°
57°
4
93°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in St. James
St. James's September 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in St. James. See also: October | November | December.
