S
M
T
W
T
F
S
26
100°
73°
27
100°
75°
28
100°
74°
29
100°
74°
30
100°
77°
31
100°
76°
1
100°
78°
2
93°
70°
3
97°
69°
4
98°
68°
5
98°
70°
6
93°
70°
7
95°
73°
8
95°
71°
9
100°
71°
10
99°
74°
11
100°
74°
12
100°
75°
13
100°
77°
14
102°
74°
15
103°
76°
16
104°
75°
17
105°
75°
18
105°
77°
19
101°
78°
20
105°
78°
21
102°
75°
22
104°
72°
23
106°
75°
24
91°
75°
25
95°
73°
26
104°
72°
27
95°
71°
28
92°
68°
29
94°
69°
30
93°
73°
31
90°
72°
1
93°
73°
2
94°
72°
3
96°
74°
4
96°
72°
5
97°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Greenville
Greenville's August 2026 forecast shows daily high temperatures ranging from 90° to 97°, with overnight lows between 68° and 74°. The average high for August is 94° with an average low of 72°. 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 Greenville. See also: September | October | November.
