S
M
T
W
T
F
S
28
76°
64°
29
80°
67°
30
83°
67°
1
76°
66°
2
81°
68°
3
80°
66°
4
77°
64°
5
77°
62°
6
78°
62°
7
77°
63°
8
76°
66°
9
78°
68°
10
79°
64°
11
79°
63°
12
81°
63°
13
80°
66°
14
82°
67°
15
80°
64°
16
80°
63°
17
81°
69°
18
80°
70°
19
85°
70°
20
85°
69°
21
84°
70°
22
83°
69°
23
84°
70°
24
85°
68°
25
85°
69°
26
84°
69°
27
84°
70°
28
85°
69°
29
85°
66°
30
84°
65°
31
79°
62°
1
79°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Downtown Boston
Downtown Boston's July 2026 forecast shows daily high temperatures ranging from 76° to 85°, with overnight lows between 62° and 70°. The average high for July is 81° with an average low of 66°. 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 Downtown Boston. See also: August | September | October.
