S
M
T
W
T
F
S
27
56°
46°
28
59°
50°
29
71°
61°
30
70°
59°
1
64°
49°
2
59°
49°
3
58°
49°
4
64°
53°
5
69°
59°
6
72°
61°
7
62°
54°
8
57°
53°
9
62°
54°
10
60°
54°
11
64°
56°
12
66°
55°
13
64°
54°
14
59°
53°
15
57°
52°
16
57°
54°
17
64°
54°
18
65°
56°
19
66°
56°
20
65°
57°
21
66°
56°
22
67°
57°
23
67°
57°
24
66°
55°
25
58°
55°
26
58°
54°
27
59°
55°
28
59°
54°
29
62°
55°
30
66°
56°
31
67°
57°
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 56° to 72°, with overnight lows between 46° and 61°. The average high for October is 63° with an average low of 55°. 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.
