S
M
T
W
T
F
S
26
80°
61°
27
79°
62°
28
79°
61°
29
80°
60°
30
79°
60°
31
80°
62°
1
80°
63°
2
81°
63°
3
81°
61°
4
82°
61°
5
82°
62°
6
85°
64°
7
87°
66°
8
87°
68°
9
86°
63°
10
87°
60°
11
80°
61°
12
81°
61°
13
79°
60°
14
80°
63°
15
84°
62°
16
85°
66°
17
87°
66°
18
Hist. Avg.
84°
63°
19
Hist. Avg.
84°
63°
20
Hist. Avg.
84°
63°
21
Hist. Avg.
83°
63°
22
Hist. Avg.
83°
63°
23
Hist. Avg.
83°
62°
24
Hist. Avg.
83°
62°
25
Hist. Avg.
83°
62°
26
Hist. Avg.
83°
62°
27
Hist. Avg.
82°
62°
28
Hist. Avg.
82°
61°
29
Hist. Avg.
82°
61°
30
Hist. Avg.
82°
61°
31
Hist. Avg.
82°
60°
1
Hist. Avg.
81°
60°
2
Hist. Avg.
81°
60°
3
Hist. Avg.
81°
59°
4
Hist. Avg.
81°
59°
5
Hist. Avg.
80°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Knoxville
Knoxville's August 2026 forecast shows daily high temperatures ranging from 79° to 87°, with overnight lows between 60° and 68°. The average high for August is 82° with an average low of 62°. 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 Knoxville. See also: September | October | November.
