S
M
T
W
T
F
S
27
66°
59°
28
70°
60°
29
74°
62°
30
80°
59°
1
89°
58°
2
89°
61°
3
71°
56°
4
64°
56°
5
71°
53°
6
66°
42°
7
74°
39°
8
79°
49°
9
75°
45°
10
72°
46°
11
60°
57°
12
73°
57°
13
85°
54°
14
87°
65°
15
71°
58°
16
83°
59°
17
60°
38°
18
62°
33°
19
68°
31°
20
72°
36°
21
68°
40°
22
70°
41°
23
64°
32°
24
62°
35°
25
65°
37°
26
71°
42°
27
66°
44°
28
64°
45°
29
65°
44°
30
66°
43°
31
56°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Williamsport
Williamsport's October 2026 forecast shows daily high temperatures ranging from 56° to 71°, with overnight lows between 32° and 45°. The average high for October is 65° with an average low of 41°. 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 Williamsport. See also: November | December | January.
