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