S
M
T
W
T
F
S
27
65°
45°
28
67°
57°
29
62°
50°
30
64°
51°
1
67°
51°
2
67°
51°
3
68°
50°
4
68°
52°
5
71°
53°
6
67°
52°
7
69°
53°
8
67°
52°
9
65°
51°
10
63°
48°
11
58°
46°
12
66°
50°
13
66°
51°
14
65°
52°
15
64°
52°
16
65°
51°
17
65°
51°
18
64°
50°
19
62°
51°
20
63°
50°
21
64°
50°
22
64°
49°
23
63°
50°
24
61°
48°
25
62°
49°
26
62°
49°
27
61°
48°
28
60°
48°
29
55°
46°
30
53°
44°
31
55°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Seattle
Seattle's October 2026 forecast shows daily high temperatures ranging from 53° to 71°, with overnight lows between 42° and 57°. The average high for October is 64° with an average low of 50°. 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 Seattle. See also: November | December | January.
