S
M
T
W
T
F
S
27
92°
63°
28
93°
62°
29
95°
65°
30
92°
74°
1
92°
72°
2
82°
71°
3
73°
67°
4
80°
66°
5
86°
56°
6
88°
55°
7
90°
55°
8
90°
58°
9
90°
58°
10
86°
60°
11
83°
59°
12
88°
63°
13
89°
59°
14
82°
61°
15
77°
56°
16
75°
53°
17
76°
50°
18
75°
49°
19
67°
51°
20
67°
53°
21
68°
48°
22
69°
48°
23
72°
52°
24
75°
48°
25
67°
50°
26
76°
52°
27
73°
51°
28
73°
52°
29
75°
53°
30
73°
52°
31
72°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Washington
Washington's October 2026 forecast shows daily high temperatures ranging from 67° to 90°, with overnight lows between 48° and 63°. The average high for October is 78° with an average low of 54°. 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 Washington. See also: November | December | January.
