S
M
T
W
T
F
S
30
86°
58°
31
85°
51°
1
83°
50°
2
78°
51°
3
78°
51°
4
79°
50°
5
77°
50°
6
77°
49°
7
78°
49°
8
78°
50°
9
77°
53°
10
76°
49°
11
78°
50°
12
79°
50°
13
81°
49°
14
79°
50°
15
76°
47°
16
76°
47°
17
73°
46°
18
74°
49°
19
72°
46°
20
73°
53°
21
Hist. Avg.
72°
50°
22
Hist. Avg.
72°
49°
23
Hist. Avg.
71°
49°
24
Hist. Avg.
71°
48°
25
Hist. Avg.
70°
48°
26
Hist. Avg.
70°
48°
27
Hist. Avg.
70°
47°
28
Hist. Avg.
69°
47°
29
Hist. Avg.
69°
46°
30
Hist. Avg.
68°
46°
1
Hist. Avg.
68°
46°
2
Hist. Avg.
67°
45°
3
Hist. Avg.
67°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in West Acton
West Acton's September 2026 forecast shows daily high temperatures ranging from 72° to 86°, with overnight lows between 46° and 58°. The average high for September is 78° with an average low of 50°. 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 West Acton. See also: October | November | December.
