S
M
T
W
T
F
S
30
72°
65°
31
74°
60°
1
78°
64°
2
84°
67°
3
79°
65°
4
76°
60°
5
75°
59°
6
72°
54°
7
76°
53°
8
74°
56°
9
73°
63°
10
75°
58°
11
69°
48°
12
82°
49°
13
78°
64°
14
67°
50°
15
68°
48°
16
76°
61°
17
76°
60°
18
64°
40°
19
64°
48°
20
58°
44°
21
58°
41°
22
59°
43°
23
60°
40°
24
62°
43°
25
61°
43°
26
63°
47°
27
62°
45°
28
62°
46°
29
65°
48°
30
63°
49°
1
64°
42°
2
60°
42°
3
58°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Montague
Montague's September 2026 forecast shows daily high temperatures ranging from 58° to 65°, with overnight lows between 40° and 49°. The average high for September is 61° with an average low of 44°. 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 Montague. See also: October | November | December.
