S
M
T
W
T
F
S
28
81°
60°
29
84°
64°
30
87°
70°
1
93°
68°
2
89°
66°
3
86°
64°
4
83°
63°
5
81°
62°
6
83°
64°
7
83°
62°
8
79°
67°
9
77°
60°
10
76°
61°
11
78°
60°
12
81°
61°
13
80°
61°
14
81°
60°
15
81°
62°
16
80°
62°
17
82°
63°
18
83°
62°
19
81°
62°
20
79°
61°
21
78°
61°
22
78°
62°
23
82°
63°
24
82°
61°
25
76°
58°
26
77°
61°
27
82°
62°
28
80°
62°
29
80°
61°
30
78°
58°
31
74°
55°
1
75°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Dorchester
Dorchester's July 2026 forecast shows daily high temperatures ranging from 74° to 93°, with overnight lows between 55° and 70°. The average high for July is 81° with an average low of 62°. 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 Dorchester. See also: August | September | October.
