S
M
T
W
T
F
S
27
90°
67°
28
83°
61°
29
78°
65°
30
92°
63°
1
92°
66°
2
96°
68°
3
98°
67°
4
93°
64°
5
90°
63°
6
92°
62°
7
91°
61°
8
89°
61°
9
90°
60°
10
88°
58°
11
89°
59°
12
81°
49°
13
85°
55°
14
85°
54°
15
84°
55°
16
82°
54°
17
72°
49°
18
71°
45°
19
71°
44°
20
72°
46°
21
74°
48°
22
74°
50°
23
69°
48°
24
68°
43°
25
67°
45°
26
68°
44°
27
67°
43°
28
67°
45°
29
69°
45°
30
66°
37°
31
64°
35°
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 98°, with overnight lows between 35° and 68°. The average high for October is 80° with an average low of 53°. 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.