S
M
T
W
T
F
S
26
82°
71°
27
86°
72°
28
89°
76°
29
90°
76°
30
87°
72°
31
87°
73°
1
86°
78°
2
85°
77°
3
82°
77°
4
84°
78°
5
86°
77°
6
87°
75°
7
86°
77°
8
86°
76°
9
87°
74°
10
91°
74°
11
91°
75°
12
90°
74°
13
89°
73°
14
88°
78°
15
85°
74°
16
83°
71°
17
89°
75°
18
90°
76°
19
90°
76°
20
91°
75°
21
89°
74°
22
88°
73°
23
88°
74°
24
89°
74°
25
89°
74°
26
88°
74°
27
87°
74°
28
85°
73°
29
87°
73°
30
88°
74°
31
88°
73°
1
87°
72°
2
88°
73°
3
84°
69°
4
82°
70°
5
83°
67°
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 82° to 91°, with overnight lows between 67° 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.
