S
M
T
W
T
F
S
27
77°
67°
28
78°
64°
29
77°
65°
30
73°
66°
1
72°
65°
2
75°
66°
3
74°
67°
4
79°
68°
5
78°
67°
6
76°
67°
7
75°
66°
8
72°
67°
9
74°
66°
10
73°
66°
11
71°
64°
12
71°
62°
13
73°
64°
14
75°
64°
15
74°
65°
16
72°
64°
17
77°
65°
18
77°
65°
19
70°
61°
20
69°
57°
21
69°
56°
22
70°
57°
23
70°
60°
24
71°
58°
25
69°
56°
26
69°
56°
27
70°
57°
28
71°
58°
29
71°
57°
30
72°
59°
31
69°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Harborview
Harborview's October 2026 forecast shows daily high temperatures ranging from 69° to 79°, with overnight lows between 56° and 68°. The average high for October is 73° with an average low of 63°. 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 Harborview. See also: November | December | January.