S
M
T
W
T
F
S
28
68°
48°
29
69°
53°
30
69°
49°
1
68°
50°
2
67°
49°
3
80°
55°
4
82°
50°
5
81°
55°
6
82°
57°
7
84°
60°
8
83°
53°
9
81°
61°
10
83°
58°
11
84°
61°
12
84°
61°
13
83°
60°
14
82°
59°
15
76°
58°
16
74°
51°
17
77°
53°
18
80°
53°
19
79°
57°
20
79°
56°
21
80°
59°
22
82°
55°
23
77°
52°
24
75°
56°
25
77°
55°
26
76°
52°
27
77°
52°
28
78°
51°
29
77°
52°
30
77°
51°
31
76°
53°
1
77°
53°
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 67° to 84°, with overnight lows between 48° and 61°. The average high for July is 78° with an average low of 55°. 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.
