S
M
T
W
T
F
S
30
69°
46°
31
63°
43°
1
68°
45°
2
69°
46°
3
69°
42°
4
66°
38°
5
60°
36°
6
60°
40°
7
64°
35°
8
59°
34°
9
56°
38°
10
57°
37°
11
58°
44°
12
58°
43°
13
59°
42°
14
58°
43°
15
58°
39°
16
61°
34°
17
56°
35°
18
56°
43°
19
63°
40°
20
56°
39°
21
55°
35°
22
54°
32°
23
54°
32°
24
55°
33°
25
54°
32°
26
53°
33°
27
55°
38°
28
54°
40°
29
53°
34°
30
53°
40°
1
56°
38°
2
52°
36°
3
50°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fort St James
Fort St James's September 2026 forecast shows daily high temperatures ranging from 50° to 69°, with overnight lows between 32° and 46°. The average high for September is 58° with an average low of 38°. 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 Fort St James. See also: October | November | December.
