S
M
T
W
T
F
S
27
75°
63°
28
75°
62°
29
77°
61°
30
74°
55°
1
73°
52°
2
72°
50°
3
71°
50°
4
70°
49°
5
69°
48°
6
70°
50°
7
70°
51°
8
72°
50°
9
73°
50°
10
71°
49°
11
69°
49°
12
70°
54°
13
69°
55°
14
68°
56°
15
Hist. Avg.
71°
50°
16
Hist. Avg.
71°
50°
17
Hist. Avg.
70°
50°
18
Hist. Avg.
70°
49°
19
Hist. Avg.
69°
49°
20
Hist. Avg.
69°
48°
21
Hist. Avg.
68°
48°
22
Hist. Avg.
68°
48°
23
Hist. Avg.
68°
47°
24
Hist. Avg.
67°
47°
25
Hist. Avg.
67°
47°
26
Hist. Avg.
66°
46°
27
Hist. Avg.
66°
46°
28
Hist. Avg.
66°
46°
29
Hist. Avg.
65°
45°
30
Hist. Avg.
65°
45°
31
Hist. Avg.
64°
44°
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 68° to 77°, with overnight lows between 48° and 63°. The average high for October is 72° with an average low of 53°. 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.
