S
M
T
W
T
F
S
27
80°
62°
28
82°
62°
29
82°
63°
30
76°
55°
1
78°
52°
2
71°
51°
3
70°
48°
4
70°
48°
5
71°
51°
6
74°
59°
7
76°
58°
8
78°
48°
9
71°
44°
10
64°
45°
11
64°
47°
12
69°
48°
13
72°
45°
14
71°
44°
15
65°
44°
16
67°
52°
17
68°
50°
18
71°
50°
19
73°
53°
20
72°
52°
21
68°
54°
22
70°
49°
23
69°
42°
24
66°
39°
25
60°
39°
26
58°
40°
27
60°
41°
28
62°
46°
29
62°
48°
30
63°
47°
31
60°
41°
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 58° to 82°, with overnight lows between 39° and 63°. The average high for October is 70° with an average low of 49°. 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.