S
M
T
W
T
F
S
27
66°
61°
28
72°
62°
29
76°
58°
30
81°
61°
1
88°
64°
2
83°
60°
3
71°
56°
4
70°
61°
5
69°
57°
6
75°
54°
7
72°
53°
8
70°
53°
9
69°
52°
10
67°
52°
11
70°
51°
12
76°
56°
13
76°
47°
14
64°
45°
15
64°
45°
16
65°
48°
17
70°
52°
18
70°
53°
19
73°
54°
20
72°
53°
21
73°
50°
22
64°
44°
23
61°
41°
24
60°
46°
25
70°
51°
26
72°
46°
27
63°
41°
28
58°
42°
29
62°
49°
30
69°
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 58° to 88°, with overnight lows between 41° and 64°. The average high for October is 70° with an average low of 52°. 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.