S
M
T
W
T
F
S
26
97°
77°
27
93°
81°
28
97°
79°
29
97°
79°
30
90°
77°
31
91°
77°
1
90°
77°
2
93°
79°
3
88°
77°
4
90°
77°
5
90°
77°
6
90°
79°
7
90°
79°
8
86°
77°
9
90°
77°
10
91°
79°
11
97°
77°
12
94°
76°
13
97°
78°
14
97°
78°
15
96°
77°
16
94°
78°
17
95°
77°
18
98°
76°
19
93°
78°
20
94°
75°
21
90°
76°
22
91°
75°
23
90°
74°
24
91°
74°
25
89°
75°
26
87°
74°
27
85°
76°
28
85°
76°
29
85°
75°
30
86°
74°
31
85°
75°
1
85°
74°
2
84°
75°
3
85°
75°
4
85°
76°
5
86°
76°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in St. Simons
St. Simons's August 2026 forecast shows daily high temperatures ranging from 84° to 98°, 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 St. Simons. See also: September | October | November.
