S
M
T
W
T
F
S
27
79°
54°
28
76°
55°
29
76°
54°
30
78°
55°
1
76°
54°
2
77°
52°
3
76°
54°
4
77°
52°
5
67°
51°
6
68°
53°
7
71°
50°
8
67°
42°
9
62°
43°
10
67°
48°
11
72°
49°
12
72°
49°
13
71°
50°
14
72°
50°
15
72°
49°
16
71°
47°
17
59°
46°
18
59°
47°
19
60°
47°
20
65°
46°
21
67°
41°
22
56°
37°
23
56°
36°
24
59°
41°
25
65°
46°
26
59°
33°
27
58°
35°
28
61°
42°
29
63°
43°
30
64°
46°
31
66°
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 79°, with overnight lows between 33° and 55°. The average high for October is 68° with an average low of 47°. 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.
