S
M
T
W
T
F
S
26
90°
73°
27
89°
72°
28
87°
71°
29
89°
73°
30
90°
76°
31
89°
75°
1
91°
75°
2
91°
76°
3
90°
76°
4
91°
75°
5
91°
75°
6
90°
76°
7
91°
75°
8
90°
75°
9
90°
74°
10
89°
75°
11
91°
75°
12
91°
74°
13
89°
71°
14
86°
70°
15
86°
70°
16
85°
73°
17
87°
72°
18
88°
70°
19
88°
73°
20
87°
72°
21
85°
70°
22
87°
70°
23
Hist. Avg.
86°
69°
24
Hist. Avg.
86°
69°
25
Hist. Avg.
86°
69°
26
Hist. Avg.
86°
69°
27
Hist. Avg.
86°
69°
28
Hist. Avg.
86°
69°
29
Hist. Avg.
86°
69°
30
Hist. Avg.
86°
68°
31
Hist. Avg.
86°
68°
1
Hist. Avg.
86°
68°
2
Hist. Avg.
85°
68°
3
Hist. Avg.
85°
68°
4
Hist. Avg.
85°
68°
5
Hist. Avg.
85°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Myrtle Beach
Myrtle Beach's August 2026 forecast shows daily high temperatures ranging from 85° to 91°, with overnight lows between 70° and 76°. The average high for August is 89° with an average low of 73°. 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.
