S
M
T
W
T
F
S
27
78°
50°
28
78°
52°
29
82°
51°
30
85°
54°
1
87°
58°
2
88°
63°
3
77°
67°
4
74°
67°
5
78°
60°
6
79°
55°
7
80°
56°
8
84°
55°
9
79°
59°
10
66°
61°
11
71°
62°
12
79°
57°
13
85°
55°
14
85°
58°
15
85°
60°
16
83°
54°
17
72°
50°
18
66°
47°
19
66°
47°
20
67°
46°
21
70°
43°
22
64°
48°
23
62°
38°
24
62°
37°
25
64°
39°
26
67°
43°
27
68°
40°
28
64°
35°
29
59°
35°
30
60°
37°
31
64°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Knoxville
Knoxville's October 2026 forecast shows daily high temperatures ranging from 59° to 85°, with overnight lows between 35° and 62°. The average high for October is 71° with an average low of 48°. 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.