S
M
T
W
T
F
S
27
65°
57°
28
67°
59°
29
71°
60°
30
74°
57°
1
80°
59°
2
84°
58°
3
72°
50°
4
61°
51°
5
70°
49°
6
62°
41°
7
69°
36°
8
75°
46°
9
72°
41°
10
71°
40°
11
58°
54°
12
73°
54°
13
78°
48°
14
79°
59°
15
68°
48°
16
75°
56°
17
51°
30°
18
59°
32°
19
66°
42°
20
70°
40°
21
63°
36°
22
65°
38°
23
60°
35°
24
56°
40°
25
60°
42°
26
64°
43°
27
60°
41°
28
57°
40°
29
58°
41°
30
59°
36°
31
54°
41°
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 51° to 70°, with overnight lows between 30° and 43°. The average high for October is 60° with an average low of 38°. 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.