S
M
T
W
T
F
S
28
90°
77°
29
91°
81°
30
89°
76°
1
88°
78°
2
89°
79°
3
89°
81°
4
90°
78°
5
91°
75°
6
92°
74°
7
93°
75°
8
94°
76°
9
94°
77°
10
93°
76°
11
92°
75°
12
91°
76°
13
92°
75°
14
91°
77°
15
91°
75°
16
92°
76°
17
91°
75°
18
93°
73°
19
88°
74°
20
92°
76°
21
91°
75°
22
88°
75°
23
88°
74°
24
87°
75°
25
89°
75°
26
91°
74°
27
89°
75°
28
89°
75°
29
90°
74°
30
89°
75°
31
89°
76°
1
90°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Merritt Island
Merritt Island's July 2026 forecast shows daily high temperatures ranging from 87° to 94°, with overnight lows between 73° and 77°. The average high for July is 91° 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 July weather will actually feel in Merritt Island. See also: August | September | October.