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