S
M
T
W
T
F
S
27
95°
67°
28
96°
71°
29
95°
69°
30
92°
74°
1
92°
73°
2
84°
73°
3
85°
74°
4
76°
72°
5
88°
70°
6
89°
68°
7
90°
64°
8
91°
67°
9
90°
63°
10
89°
58°
11
91°
64°
12
87°
70°
13
94°
78°
14
90°
73°
15
88°
68°
16
74°
57°
17
68°
48°
18
72°
52°
19
77°
53°
20
81°
53°
21
83°
55°
22
86°
57°
23
88°
57°
24
87°
60°
25
86°
59°
26
85°
58°
27
82°
56°
28
82°
58°
29
82°
62°
30
83°
60°
31
75°
46°
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 72° to 88°, with overnight lows between 46° and 62°. The average high for October is 82° with an average low of 56°. 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.