S
M
T
W
T
F
S
26
83°
72°
27
86°
75°
28
90°
78°
29
91°
72°
30
91°
70°
31
89°
77°
1
87°
78°
2
85°
75°
3
86°
74°
4
87°
75°
5
88°
74°
6
89°
75°
7
87°
75°
8
88°
76°
9
87°
74°
10
85°
75°
11
86°
75°
12
88°
74°
13
85°
75°
14
89°
75°
15
88°
74°
16
85°
75°
17
85°
74°
18
88°
74°
19
88°
75°
20
87°
74°
21
84°
74°
22
84°
73°
23
86°
74°
24
88°
74°
25
87°
73°
26
85°
74°
27
88°
75°
28
90°
75°
29
90°
74°
30
89°
75°
31
90°
73°
1
86°
73°
2
84°
72°
3
84°
71°
4
85°
72°
5
86°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Myrtle Beach
Myrtle Beach's August 2026 forecast shows daily high temperatures ranging from 84° to 91°, with overnight lows between 70° and 78°. The average high for August is 87° with an average low of 74°. 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 Myrtle Beach. See also: September | October | November.
