S
M
T
W
T
F
S
28
68°
54°
29
63°
54°
30
66°
54°
1
69°
54°
2
72°
44°
3
78°
56°
4
77°
57°
5
81°
54°
6
88°
61°
7
83°
54°
8
78°
55°
9
82°
49°
10
81°
52°
11
77°
55°
12
78°
47°
13
85°
53°
14
87°
50°
15
86°
53°
16
65°
54°
17
73°
54°
18
77°
51°
19
84°
56°
20
86°
64°
21
99°
59°
22
94°
63°
23
79°
59°
24
87°
58°
25
74°
55°
26
78°
58°
27
80°
58°
28
75°
56°
29
80°
55°
30
78°
54°
31
85°
57°
1
78°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Deer Island
Deer Island's July 2026 forecast shows daily high temperatures ranging from 75° to 85°, with overnight lows between 54° and 58°. The average high for July is 79° with an average low of 56°. 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 Deer Island. See also: August | September | October.
