S
M
T
W
T
F
S
27
82°
50°
28
84°
45°
29
88°
46°
30
91°
52°
1
91°
59°
2
91°
68°
3
75°
67°
4
79°
64°
5
84°
52°
6
86°
46°
7
86°
54°
8
87°
52°
9
87°
61°
10
66°
62°
11
69°
56°
12
88°
58°
13
90°
59°
14
88°
62°
15
88°
62°
16
84°
51°
17
72°
47°
18
66°
45°
19
69°
46°
20
69°
47°
21
70°
43°
22
63°
47°
23
63°
39°
24
62°
38°
25
66°
44°
26
69°
45°
27
71°
43°
28
65°
37°
29
60°
38°
30
64°
42°
31
69°
46°
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 60° to 90°, with overnight lows between 37° and 62°. The average high for October is 73° with an average low of 49°. 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.
