S
M
T
W
T
F
S
27
76°
55°
28
75°
52°
29
70°
50°
30
74°
55°
1
72°
51°
2
67°
50°
3
73°
53°
4
74°
53°
5
75°
52°
6
71°
54°
7
71°
54°
8
72°
53°
9
72°
53°
10
71°
52°
11
72°
48°
12
61°
42°
13
58°
38°
14
57°
38°
15
56°
37°
16
56°
39°
17
57°
37°
18
56°
36°
19
55°
37°
20
55°
36°
21
56°
35°
22
55°
36°
23
71°
47°
24
70°
43°
25
68°
42°
26
59°
38°
27
53°
31°
28
52°
30°
29
51°
36°
30
54°
44°
31
61°
36°
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 51° to 76°, with overnight lows between 30° and 55°. The average high for October is 64° with an average low of 44°. 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.