S
M
T
W
T
F
S
27
84°
63°
28
84°
63°
29
85°
64°
30
84°
64°
1
83°
62°
2
82°
62°
3
83°
61°
4
83°
62°
5
79°
63°
6
76°
62°
7
79°
61°
8
81°
62°
9
81°
61°
10
80°
60°
11
80°
58°
12
75°
53°
13
69°
53°
14
67°
47°
15
67°
46°
16
68°
46°
17
67°
49°
18
69°
47°
19
66°
45°
20
65°
45°
21
66°
49°
22
67°
49°
23
76°
56°
24
78°
55°
25
77°
52°
26
74°
44°
27
65°
40°
28
62°
42°
29
64°
51°
30
65°
51°
31
62°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Chattanooga
Chattanooga's October 2026 forecast shows daily high temperatures ranging from 62° to 85°, with overnight lows between 40° and 64°. The average high for October is 74° with an average low of 54°. 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 Chattanooga. See also: November | December | January.
