S
M
T
W
T
F
S
27
76°
43°
28
77°
44°
29
81°
48°
30
75°
58°
1
89°
64°
2
68°
51°
3
71°
46°
4
78°
44°
5
71°
42°
6
74°
44°
7
84°
50°
8
78°
46°
9
82°
56°
10
79°
60°
11
73°
55°
12
85°
64°
13
79°
53°
14
70°
59°
15
76°
54°
16
63°
43°
17
57°
39°
18
60°
43°
19
58°
42°
20
64°
41°
21
62°
42°
22
63°
36°
23
54°
35°
24
57°
40°
25
62°
44°
26
65°
42°
27
63°
39°
28
52°
34°
29
52°
38°
30
57°
42°
31
63°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in West Lafayette
West Lafayette's October 2026 forecast shows daily high temperatures ranging from 52° to 85°, with overnight lows between 34° and 64°. 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 West Lafayette. See also: November | December | January.