S
M
T
W
T
F
S
26
78°
58°
27
83°
52°
28
79°
55°
29
81°
57°
30
83°
50°
31
90°
52°
1
74°
53°
2
74°
54°
3
86°
59°
4
95°
58°
5
95°
57°
6
88°
56°
7
84°
58°
8
85°
57°
9
81°
56°
10
82°
56°
11
80°
55°
12
81°
56°
13
83°
58°
14
80°
56°
15
81°
54°
16
75°
51°
17
78°
56°
18
81°
54°
19
81°
53°
20
79°
53°
21
76°
54°
22
75°
52°
23
78°
56°
24
74°
50°
25
81°
53°
26
82°
57°
27
81°
57°
28
81°
58°
29
76°
54°
30
73°
50°
31
73°
53°
1
72°
54°
2
72°
50°
3
73°
50°
4
75°
52°
5
71°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Deer Island
Deer Island's August 2026 forecast shows daily high temperatures ranging from 71° to 95°, with overnight lows between 50° and 59°. The average high for August is 79° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Deer Island. See also: September | October | November.
