S
M
T
W
T
F
S
30
86°
43°
31
88°
44°
1
77°
45°
2
62°
48°
3
61°
42°
4
66°
35°
5
72°
39°
6
68°
44°
7
77°
37°
8
86°
39°
9
93°
42°
10
94°
59°
11
88°
45°
12
80°
42°
13
68°
42°
14
79°
36°
15
82°
36°
16
77°
49°
17
75°
38°
18
82°
39°
19
85°
41°
20
88°
39°
21
88°
48°
22
81°
43°
23
80°
44°
24
82°
46°
25
70°
38°
26
76°
43°
27
72°
38°
28
78°
42°
29
76°
44°
30
74°
42°
1
72°
44°
2
71°
42°
3
73°
42°
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 70° to 88°, with overnight lows between 38° and 48°. The average high for September is 76° with an average low of 43°. 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.
