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
83°
57°
9
78°
59°
10
75°
57°
11
67°
63°
12
80°
59°
13
85°
57°
14
86°
59°
15
89°
69°
16
83°
49°
17
59°
46°
18
67°
40°
19
70°
40°
20
73°
41°
21
74°
42°
22
73°
43°
23
73°
44°
24
71°
42°
25
71°
43°
26
71°
44°
27
74°
43°
28
73°
48°
29
75°
45°
30
78°
54°
31
73°
55°
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 73° to 78°, with overnight lows between 54° and 55°. The average high for October is 76° with an average low of 55°. 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.