S
M
T
W
T
F
S
26
92°
65°
27
88°
64°
28
87°
65°
29
88°
66°
30
90°
65°
31
87°
64°
1
89°
64°
2
91°
65°
3
93°
67°
4
93°
67°
5
94°
68°
6
90°
68°
7
88°
69°
8
86°
70°
9
88°
68°
10
91°
70°
11
89°
70°
12
91°
68°
13
88°
64°
14
89°
63°
15
86°
66°
16
89°
65°
17
93°
64°
18
92°
69°
19
93°
69°
20
93°
68°
21
92°
69°
22
93°
70°
23
92°
69°
24
93°
68°
25
94°
62°
26
89°
64°
27
88°
63°
28
87°
65°
29
89°
67°
30
90°
67°
31
88°
66°
1
87°
65°
2
88°
66°
3
86°
65°
4
85°
66°
5
84°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Myrtle
Myrtle's August 2026 forecast shows daily high temperatures ranging from 84° to 94°, with overnight lows between 62° and 70°. The average high for August is 90° with an average low of 66°. 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. See also: September | October | November.
