S
M
T
W
T
F
S
28
84°
63°
29
86°
58°
30
90°
56°
1
95°
71°
2
100°
74°
3
98°
73°
4
98°
62°
5
87°
62°
6
81°
61°
7
83°
60°
8
84°
62°
9
91°
64°
10
91°
62°
11
87°
63°
12
88°
62°
13
88°
61°
14
87°
63°
15
88°
61°
16
82°
58°
17
83°
62°
18
83°
63°
19
84°
63°
20
84°
64°
21
83°
64°
22
83°
63°
23
84°
64°
24
83°
64°
25
84°
63°
26
84°
63°
27
85°
64°
28
87°
63°
29
87°
64°
30
88°
65°
31
89°
65°
1
88°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Acton
Acton's July 2026 forecast shows daily high temperatures ranging from 81° to 100°, with overnight lows between 58° and 74°. The average high for July is 87° with an average low of 63°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Acton. See also: August | September | October.