S
M
T
W
T
F
S
27
78°
48°
28
77°
47°
29
70°
54°
30
70°
54°
1
69°
55°
2
71°
52°
3
72°
46°
4
68°
50°
5
67°
51°
6
68°
50°
7
68°
44°
8
73°
43°
9
Hist. Avg.
69°
45°
10
Hist. Avg.
69°
44°
11
Hist. Avg.
68°
44°
12
Hist. Avg.
68°
44°
13
Hist. Avg.
68°
43°
14
Hist. Avg.
67°
43°
15
Hist. Avg.
67°
42°
16
Hist. Avg.
67°
42°
17
Hist. Avg.
66°
42°
18
Hist. Avg.
66°
41°
19
Hist. Avg.
66°
41°
20
Hist. Avg.
65°
41°
21
Hist. Avg.
65°
40°
22
Hist. Avg.
65°
40°
23
Hist. Avg.
64°
40°
24
Hist. Avg.
64°
39°
25
Hist. Avg.
64°
39°
26
Hist. Avg.
64°
39°
27
Hist. Avg.
63°
38°
28
Hist. Avg.
63°
38°
29
Hist. Avg.
63°
38°
30
Hist. Avg.
62°
38°
31
Hist. Avg.
62°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Williamsport
Williamsport's October 2026 forecast shows daily high temperatures ranging from 67° to 78°, with overnight lows between 43° and 55°. The average high for October is 71° with an average low of 50°. 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.
