S
M
T
W
T
F
S
27
66°
52°
28
66°
51°
29
67°
55°
30
66°
56°
1
64°
50°
2
64°
46°
3
65°
45°
4
61°
45°
5
60°
46°
6
60°
44°
7
61°
45°
8
62°
47°
9
65°
51°
10
64°
47°
11
64°
41°
12
60°
43°
13
60°
51°
14
62°
51°
15
Hist. Avg.
61°
44°
16
Hist. Avg.
61°
44°
17
Hist. Avg.
61°
43°
18
Hist. Avg.
60°
43°
19
Hist. Avg.
60°
42°
20
Hist. Avg.
59°
42°
21
Hist. Avg.
59°
42°
22
Hist. Avg.
59°
42°
23
Hist. Avg.
58°
41°
24
Hist. Avg.
58°
41°
25
Hist. Avg.
58°
40°
26
Hist. Avg.
57°
40°
27
Hist. Avg.
57°
40°
28
Hist. Avg.
56°
40°
29
Hist. Avg.
56°
39°
30
Hist. Avg.
56°
39°
31
Hist. Avg.
55°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Portland
Portland's October 2026 forecast shows daily high temperatures ranging from 60° to 67°, with overnight lows between 41° and 56°. The average high for October is 63° with an average low of 48°. 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.
