S
M
T
W
T
F
S
28
83°
59°
29
84°
62°
30
91°
71°
1
95°
72°
2
94°
73°
3
91°
70°
4
83°
67°
5
79°
63°
6
76°
63°
7
80°
62°
8
83°
63°
9
84°
67°
10
83°
65°
11
78°
61°
12
77°
60°
13
79°
64°
14
82°
64°
15
80°
61°
16
81°
60°
17
74°
57°
18
77°
56°
19
78°
62°
20
79°
62°
21
78°
61°
22
80°
61°
23
77°
60°
24
76°
61°
25
77°
60°
26
79°
62°
27
81°
62°
28
82°
61°
29
81°
63°
30
82°
62°
31
81°
62°
1
79°
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 91°, with overnight lows between 56° and 70°. The average high for July is 80° 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.
