S
M
T
W
T
F
S
26
85°
68°
27
84°
68°
28
85°
67°
29
84°
68°
30
84°
65°
31
85°
62°
1
83°
62°
2
83°
67°
3
84°
67°
4
84°
66°
5
85°
64°
6
86°
67°
7
86°
67°
8
83°
66°
9
85°
62°
10
87°
65°
11
85°
66°
12
85°
67°
13
87°
65°
14
86°
66°
15
87°
65°
16
89°
66°
17
89°
65°
18
87°
63°
19
87°
59°
20
82°
59°
21
82°
58°
22
83°
58°
23
83°
59°
24
84°
58°
25
84°
58°
26
85°
59°
27
83°
58°
28
87°
58°
29
84°
59°
30
83°
58°
31
87°
59°
1
86°
62°
2
87°
61°
3
83°
57°
4
82°
58°
5
85°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Greeneville
Greeneville's August 2026 forecast shows daily high temperatures ranging from 82° to 89°, with overnight lows between 57° and 68°. The average high for August is 85° with an average low of 63°. 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 Greeneville. See also: September | October | November.
