S
M
T
W
T
F
S
27
75°
53°
28
77°
46°
29
81°
45°
30
67°
60°
1
71°
59°
2
68°
47°
3
71°
45°
4
74°
45°
5
73°
41°
6
76°
46°
7
81°
50°
8
81°
52°
9
80°
54°
10
80°
51°
11
78°
57°
12
84°
61°
13
71°
52°
14
65°
57°
15
71°
50°
16
61°
40°
17
58°
40°
18
60°
41°
19
62°
42°
20
64°
45°
21
62°
39°
22
58°
42°
23
54°
38°
24
60°
43°
25
63°
44°
26
64°
39°
27
62°
35°
28
51°
31°
29
51°
41°
30
55°
40°
31
63°
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 51° to 84°, with overnight lows between 31° and 61°. The average high for October is 65° with an average low of 45°. 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.