S
M
T
W
T
F
S
27
66°
45°
28
63°
55°
29
68°
57°
30
73°
55°
1
82°
61°
2
72°
52°
3
69°
50°
4
69°
49°
5
62°
37°
6
61°
36°
7
70°
48°
8
71°
48°
9
72°
47°
10
70°
49°
11
75°
52°
12
69°
55°
13
67°
47°
14
62°
46°
15
66°
45°
16
65°
40°
17
67°
43°
18
65°
46°
19
56°
36°
20
58°
33°
21
56°
42°
22
55°
37°
23
56°
36°
24
59°
37°
25
53°
37°
26
53°
35°
27
52°
33°
28
52°
30°
29
56°
39°
30
63°
41°
31
64°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Indiana
Indiana's October 2026 forecast shows daily high temperatures ranging from 52° to 75°, with overnight lows between 30° and 55°. The average high for October is 63° with an average low of 42°. 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 Indiana. See also: November | December | January.