S
M
T
W
T
F
S
27
82°
55°
28
72°
52°
29
70°
52°
30
71°
60°
1
80°
57°
2
72°
50°
3
74°
46°
4
67°
47°
5
68°
51°
6
70°
58°
7
74°
57°
8
72°
57°
9
77°
56°
10
77°
55°
11
76°
52°
12
68°
55°
13
74°
50°
14
74°
42°
15
66°
43°
16
63°
42°
17
63°
42°
18
64°
46°
19
67°
54°
20
70°
52°
21
72°
42°
22
71°
42°
23
61°
40°
24
61°
38°
25
59°
40°
26
61°
45°
27
66°
47°
28
69°
49°
29
69°
49°
30
68°
51°
31
69°
50°
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 82°, with overnight lows between 38° and 60°. 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.