S
M
T
W
T
F
S
27
63°
56°
28
67°
58°
29
69°
58°
30
74°
62°
1
81°
61°
2
86°
59°
3
72°
54°
4
63°
51°
5
70°
40°
6
64°
38°
7
70°
47°
8
75°
45°
9
73°
45°
10
70°
45°
11
68°
48°
12
70°
49°
13
69°
47°
14
66°
43°
15
65°
46°
16
66°
45°
17
65°
41°
18
68°
46°
19
59°
38°
20
61°
35°
21
57°
37°
22
57°
44°
23
58°
42°
24
61°
41°
25
59°
39°
26
56°
39°
27
55°
35°
28
55°
33°
29
56°
36°
30
62°
40°
31
64°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Collegeville
Collegeville's October 2026 forecast shows daily high temperatures ranging from 55° to 75°, with overnight lows between 33° and 51°. The average high for October is 64° 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 Collegeville. See also: November | December | January.