S
M
T
W
T
F
S
26
99°
71°
27
100°
70°
28
99°
66°
29
100°
66°
30
102°
67°
31
105°
63°
1
107°
65°
2
103°
76°
3
102°
73°
4
103°
76°
5
104°
71°
6
104°
78°
7
103°
74°
8
104°
77°
9
105°
74°
10
103°
77°
11
97°
79°
12
93°
73°
13
87°
64°
14
89°
60°
15
94°
59°
16
98°
64°
17
99°
66°
18
101°
69°
19
104°
72°
20
100°
71°
21
100°
71°
22
100°
69°
23
100°
68°
24
99°
69°
25
102°
75°
26
104°
73°
27
101°
69°
28
101°
69°
29
100°
68°
30
97°
66°
31
94°
66°
1
92°
64°
2
94°
63°
3
90°
67°
4
91°
63°
5
95°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Acton
Acton's August 2026 forecast shows daily high temperatures ranging from 90° to 104°, with overnight lows between 63° and 75°. The average high for August is 98° with an average low of 68°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Acton. See also: September | October | November.
