S
M
T
W
T
F
S
26
85°
66°
27
86°
67°
28
85°
66°
29
86°
67°
30
85°
66°
31
85°
65°
1
80°
62°
2
78°
60°
3
78°
62°
4
79°
65°
5
80°
65°
6
83°
64°
7
84°
64°
8
85°
65°
9
84°
65°
10
84°
64°
11
83°
65°
12
85°
65°
13
84°
64°
14
87°
59°
15
86°
61°
16
80°
63°
17
81°
62°
18
84°
61°
19
83°
57°
20
79°
54°
21
76°
54°
22
76°
55°
23
77°
56°
24
77°
55°
25
78°
59°
26
76°
56°
27
83°
58°
28
82°
56°
29
76°
55°
30
75°
54°
31
74°
54°
1
74°
55°
2
75°
54°
3
74°
53°
4
75°
54°
5
76°
58°
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 87°, with overnight lows between 53° and 67°. The average high for August is 81° with an average low of 60°. 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.
