S
M
T
W
T
F
S
27
66°
58°
28
67°
60°
29
72°
58°
30
78°
56°
1
80°
62°
2
86°
58°
3
71°
51°
4
63°
53°
5
71°
43°
6
64°
38°
7
68°
46°
8
74°
47°
9
69°
45°
10
68°
45°
11
66°
44°
12
67°
46°
13
67°
46°
14
66°
43°
15
60°
38°
16
63°
41°
17
69°
47°
18
69°
48°
19
66°
47°
20
67°
41°
21
61°
38°
22
58°
40°
23
59°
39°
24
65°
45°
25
67°
45°
26
67°
38°
27
56°
35°
28
57°
35°
29
59°
41°
30
59°
41°
31
60°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Allentown
Allentown's October 2026 forecast shows daily high temperatures ranging from 56° to 86°, with overnight lows between 35° and 62°. The average high for October is 66° with an average low of 44°. 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 Allentown. See also: November | December | January.
