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