S
M
T
W
T
F
S
28
97°
78°
29
98°
77°
30
93°
74°
1
95°
73°
2
95°
74°
3
96°
75°
4
92°
70°
5
94°
74°
6
87°
69°
7
87°
68°
8
86°
68°
9
87°
73°
10
88°
73°
11
92°
72°
12
93°
74°
13
94°
74°
14
94°
73°
15
93°
74°
16
95°
74°
17
95°
73°
18
93°
73°
19
94°
74°
20
92°
74°
21
95°
73°
22
91°
74°
23
90°
73°
24
94°
74°
25
91°
74°
26
95°
73°
27
96°
75°
28
96°
75°
29
95°
74°
30
96°
74°
31
96°
73°
1
95°
74°
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 86° to 98°, with overnight lows between 68° and 78°. The average high for July is 93° with an average low of 73°. 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.