S
M
T
W
T
F
S
26
92°
78°
27
94°
79°
28
92°
79°
29
94°
79°
30
92°
77°
31
95°
79°
1
94°
79°
2
89°
77°
3
94°
78°
4
89°
78°
5
86°
76°
6
88°
77°
7
88°
77°
8
92°
76°
9
92°
77°
10
91°
76°
11
92°
74°
12
92°
76°
13
93°
75°
14
90°
76°
15
89°
75°
16
91°
74°
17
88°
75°
18
89°
75°
19
88°
74°
20
90°
75°
21
90°
75°
22
89°
74°
23
88°
75°
24
89°
75°
25
90°
74°
26
89°
75°
27
90°
75°
28
89°
74°
29
89°
76°
30
90°
75°
31
88°
75°
1
89°
74°
2
88°
75°
3
87°
75°
4
86°
74°
5
86°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Merritt Island
Merritt Island's August 2026 forecast shows daily high temperatures ranging from 86° to 93°, with overnight lows between 74° and 77°. The average high for August is 89° with an average low of 75°. 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 Merritt Island. See also: September | October | November.
