S
M
T
W
T
F
S
27
77°
61°
28
81°
55°
29
86°
52°
30
93°
72°
1
83°
64°
2
75°
49°
3
74°
46°
4
74°
50°
5
69°
44°
6
72°
44°
7
73°
51°
8
76°
50°
9
75°
48°
10
74°
50°
11
74°
52°
12
71°
49°
13
70°
43°
14
63°
40°
15
63°
43°
16
72°
49°
17
74°
50°
18
74°
48°
19
65°
43°
20
61°
39°
21
59°
36°
22
60°
43°
23
71°
48°
24
71°
47°
25
70°
46°
26
64°
40°
27
60°
39°
28
67°
43°
29
64°
39°
30
63°
43°
31
68°
44°
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 59° to 93°, with overnight lows between 36° and 72°. The average high for October is 70° with an average low of 47°. 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.