S
M
T
W
T
F
S
27
66°
50°
28
68°
49°
29
69°
50°
30
69°
50°
1
68°
49°
2
68°
50°
3
66°
50°
4
66°
49°
5
67°
49°
6
66°
48°
7
65°
49°
8
66°
49°
9
64°
44°
10
61°
47°
11
60°
46°
12
64°
44°
13
63°
45°
14
58°
44°
15
60°
44°
16
60°
43°
17
58°
42°
18
60°
44°
19
61°
46°
20
62°
42°
21
61°
41°
22
58°
42°
23
58°
32°
24
57°
38°
25
46°
42°
26
59°
41°
27
58°
36°
28
54°
35°
29
45°
32°
30
44°
30°
31
44°
29°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Port Perry
Port Perry's October 2026 forecast shows daily high temperatures ranging from 44° to 69°, with overnight lows between 29° and 50°. The average high for October is 61° with an average low of 43°. 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 Perry. See also: November | December | January.