S
M
T
W
T
F
S
27
62°
53°
28
68°
51°
29
72°
48°
30
73°
55°
1
71°
51°
2
71°
53°
3
70°
49°
4
71°
50°
5
72°
46°
6
70°
44°
7
62°
39°
8
67°
43°
9
63°
48°
10
67°
45°
11
62°
45°
12
60°
44°
13
59°
40°
14
60°
44°
15
59°
46°
16
67°
44°
17
64°
45°
18
64°
45°
19
67°
47°
20
68°
46°
21
66°
46°
22
67°
45°
23
65°
36°
24
54°
32°
25
53°
32°
26
56°
41°
27
58°
38°
28
53°
34°
29
60°
42°
30
62°
43°
31
63°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Lehigh Valley
Lehigh Valley's October 2026 forecast shows daily high temperatures ranging from 53° to 73°, with overnight lows between 32° and 55°. The average high for October is 64° 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 Lehigh Valley. See also: November | December | January.