S
M
T
W
T
F
S
27
63°
46°
28
60°
44°
29
61°
45°
30
60°
53°
1
61°
49°
2
61°
46°
3
64°
54°
4
66°
54°
5
68°
52°
6
69°
53°
7
68°
46°
8
66°
49°
9
67°
52°
10
68°
53°
11
68°
45°
12
65°
44°
13
63°
48°
14
62°
45°
15
57°
47°
16
56°
46°
17
56°
48°
18
55°
42°
19
56°
43°
20
55°
43°
21
54°
42°
22
54°
42°
23
55°
43°
24
52°
42°
25
53°
42°
26
53°
43°
27
54°
42°
28
54°
43°
29
55°
40°
30
53°
41°
31
53°
44°
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 52° to 69°, with overnight lows between 40° and 54°. The average high for October is 60° with an average low of 46°. 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.
