S
M
T
W
T
F
S
28
77°
61°
29
72°
52°
30
77°
59°
1
75°
59°
2
72°
57°
3
77°
50°
4
74°
56°
5
73°
56°
6
76°
55°
7
75°
56°
8
80°
56°
9
74°
61°
10
80°
62°
11
79°
60°
12
78°
59°
13
76°
58°
14
76°
59°
15
77°
59°
16
78°
60°
17
72°
57°
18
74°
57°
19
72°
56°
20
68°
53°
21
72°
57°
22
70°
56°
23
69°
52°
24
73°
57°
25
73°
57°
26
71°
56°
27
69°
56°
28
74°
58°
29
73°
58°
30
72°
57°
31
70°
55°
1
69°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Boston
Boston's July 2026 forecast shows daily high temperatures ranging from 68° to 80°, with overnight lows between 52° and 62°. The average high for July is 74° with an average low of 57°. 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 Boston. See also: August | September | October.