S
M
T
W
T
F
S
26
84°
63°
27
84°
63°
28
83°
62°
29
83°
62°
30
80°
57°
31
77°
55°
1
76°
59°
2
77°
59°
3
79°
61°
4
81°
62°
5
81°
62°
6
83°
61°
7
78°
61°
8
77°
58°
9
78°
56°
10
78°
56°
11
81°
61°
12
83°
61°
13
84°
62°
14
85°
61°
15
84°
63°
16
84°
61°
17
85°
53°
18
79°
53°
19
76°
52°
20
75°
51°
21
76°
52°
22
76°
52°
23
77°
53°
24
78°
52°
25
80°
52°
26
82°
56°
27
83°
52°
28
76°
51°
29
75°
50°
30
75°
51°
31
77°
53°
1
79°
50°
2
75°
49°
3
74°
55°
4
79°
57°
5
81°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Knox
Knox's August 2026 forecast shows daily high temperatures ranging from 74° to 85°, with overnight lows between 49° and 63°. The average high for August is 79° with an average low of 57°. 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 Knox. See also: September | October | November.
