S
M
T
W
T
F
S
28
81°
62°
29
85°
58°
30
80°
57°
1
84°
69°
2
97°
69°
3
96°
72°
4
93°
72°
5
80°
70°
6
68°
64°
7
71°
64°
8
77°
63°
9
82°
70°
10
84°
67°
11
86°
66°
12
85°
67°
13
83°
68°
14
82°
69°
15
83°
68°
16
86°
70°
17
85°
68°
18
84°
69°
19
86°
70°
20
81°
67°
21
80°
65°
22
80°
65°
23
81°
66°
24
80°
65°
25
81°
68°
26
81°
70°
27
84°
71°
28
86°
71°
29
86°
70°
30
87°
71°
31
82°
71°
1
83°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in South Dartmouth
South Dartmouth's July 2026 forecast shows daily high temperatures ranging from 68° to 87°, with overnight lows between 63° and 71°. The average high for July is 82° with an average low of 68°. 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 South Dartmouth. See also: August | September | October.
