S
M
T
W
T
F
S
30
77°
61°
31
75°
63°
1
81°
66°
2
84°
63°
3
84°
66°
4
82°
64°
5
77°
59°
6
75°
55°
7
79°
52°
8
79°
55°
9
81°
59°
10
84°
66°
11
77°
57°
12
79°
52°
13
77°
64°
14
75°
48°
15
73°
53°
16
79°
64°
17
84°
68°
18
81°
59°
19
74°
61°
20
71°
59°
21
72°
64°
22
73°
60°
23
69°
55°
24
72°
56°
25
71°
56°
26
72°
57°
27
71°
57°
28
75°
56°
29
75°
54°
30
69°
50°
1
67°
52°
2
69°
55°
3
73°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fort Montgomery
Fort Montgomery's September 2026 forecast shows daily high temperatures ranging from 67° to 84°, with overnight lows between 48° and 68°. The average high for September is 73° 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 September weather will actually feel in Fort Montgomery. See also: October | November | December.
