S
M
T
W
T
F
S
27
N/A
28
85°
51°
29
88°
55°
30
89°
58°
1
89°
61°
2
91°
64°
3
84°
71°
4
76°
66°
5
78°
56°
6
80°
52°
7
80°
50°
8
84°
57°
9
78°
60°
10
72°
61°
11
68°
63°
12
73°
62°
13
78°
63°
14
75°
56°
15
76°
56°
16
75°
55°
17
69°
51°
18
73°
53°
19
69°
55°
20
70°
55°
21
70°
54°
22
71°
55°
23
71°
54°
24
74°
49°
25
67°
43°
26
66°
49°
27
69°
44°
28
64°
42°
29
64°
44°
30
70°
51°
31
72°
51°
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 64° to 84°, with overnight lows between 42° and 66°. The average high for October is 73° 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.