S
M
T
W
T
F
S
27
45°
36°
28
45°
35°
29
44°
34°
30
44°
34°
1
45°
35°
2
44°
37°
3
45°
39°
4
44°
39°
5
44°
38°
6
45°
39°
7
45°
39°
8
44°
38°
9
42°
38°
10
43°
37°
11
42°
37°
12
41°
35°
13
40°
34°
14
42°
37°
15
43°
37°
16
42°
36°
17
42°
36°
18
42°
34°
19
39°
35°
20
39°
32°
21
38°
30°
22
39°
34°
23
38°
33°
24
40°
29°
25
40°
28°
26
38°
31°
27
42°
27°
28
41°
25°
29
41°
26°
30
36°
32°
31
38°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Port William
Port William's October 2026 forecast shows daily high temperatures ranging from 36° to 45°, with overnight lows between 25° and 39°. The average high for October is 42° with an average low of 34°. 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 Port William. See also: November | December | January.
