S
M
T
W
T
F
S
30
73°
52°
31
73°
48°
1
77°
56°
2
75°
58°
3
78°
64°
4
75°
60°
5
69°
54°
6
70°
46°
7
77°
54°
8
69°
49°
9
68°
63°
10
72°
47°
11
65°
47°
12
73°
55°
13
75°
53°
14
71°
49°
15
66°
48°
16
65°
46°
17
64°
47°
18
65°
49°
19
66°
54°
20
70°
51°
21
59°
50°
22
60°
49°
23
66°
50°
24
68°
49°
25
67°
49°
26
67°
47°
27
61°
44°
28
65°
47°
29
67°
48°
30
68°
49°
1
68°
49°
2
67°
48°
3
65°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Acton Vale
Acton Vale's September 2026 forecast shows daily high temperatures ranging from 59° to 77°, with overnight lows between 44° and 63°. The average high for September is 67° with an average low of 49°. 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 Acton Vale. See also: October | November | December.