S
M
T
W
T
F
S
27
61°
52°
28
62°
52°
29
62°
50°
30
61°
50°
1
61°
52°
2
63°
51°
3
67°
51°
4
68°
50°
5
68°
52°
6
67°
50°
7
62°
48°
8
60°
49°
9
64°
49°
10
63°
48°
11
56°
48°
12
56°
45°
13
55°
42°
14
54°
41°
15
54°
39°
16
53°
36°
17
53°
44°
18
56°
40°
19
53°
37°
20
53°
39°
21
52°
38°
22
53°
36°
23
51°
47°
24
63°
42°
25
65°
36°
26
56°
33°
27
49°
32°
28
50°
31°
29
47°
32°
30
49°
35°
31
52°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Portland
Portland's October 2026 forecast shows daily high temperatures ranging from 47° to 68°, with overnight lows between 31° and 52°. The average high for October is 58° 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 Portland. See also: November | December | January.
