S
M
T
W
T
F
S
27
86°
52°
28
86°
48°
29
90°
50°
30
90°
55°
1
90°
63°
2
90°
68°
3
90°
72°
4
81°
70°
5
75°
68°
6
81°
61°
7
84°
59°
8
N/A
9
73°
63°
10
74°
64°
11
76°
62°
12
87°
57°
13
87°
56°
14
89°
57°
15
86°
59°
16
83°
57°
17
80°
57°
18
74°
52°
19
75°
52°
20
74°
49°
21
71°
50°
22
73°
49°
23
71°
49°
24
68°
47°
25
68°
51°
26
70°
51°
27
76°
50°
28
74°
45°
29
67°
42°
30
67°
50°
31
72°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Knoxville
Knoxville's October 2026 forecast shows daily high temperatures ranging from 67° to 89°, with overnight lows between 42° and 64°. The average high for October is 75° with an average low of 53°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Knoxville. See also: November | December | January.