S
M
T
W
T
F
S
27
62°
40°
28
59°
38°
29
60°
40°
30
59°
47°
1
60°
44°
2
60°
40°
3
63°
49°
4
65°
49°
5
68°
47°
6
69°
48°
7
67°
41°
8
65°
43°
9
66°
47°
10
67°
48°
11
67°
40°
12
63°
39°
13
62°
43°
14
60°
40°
15
55°
42°
16
54°
41°
17
54°
43°
18
53°
37°
19
54°
38°
20
52°
38°
21
51°
36°
22
51°
37°
23
52°
37°
24
49°
38°
25
50°
37°
26
50°
37°
27
51°
38°
28
50°
38°
29
51°
35°
30
49°
36°
31
49°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Index
Index's October 2026 forecast shows daily high temperatures ranging from 49° to 69°, with overnight lows between 35° and 49°. The average high for October is 58° with an average low of 41°. 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 Index. See also: November | December | January.