S
M
T
W
T
F
S
27
62°
43°
28
72°
43°
29
78°
58°
30
72°
54°
1
76°
51°
2
79°
51°
3
81°
53°
4
77°
51°
5
84°
52°
6
81°
52°
7
78°
50°
8
80°
50°
9
76°
49°
10
59°
40°
11
53°
35°
12
55°
39°
13
62°
37°
14
69°
45°
15
68°
40°
16
71°
40°
17
70°
42°
18
65°
38°
19
61°
46°
20
62°
40°
21
66°
42°
22
53°
43°
23
58°
43°
24
59°
35°
25
52°
36°
26
56°
47°
27
57°
44°
28
54°
38°
29
54°
36°
30
48°
36°
31
44°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Walla Walla
Walla Walla's October 2026 forecast shows daily high temperatures ranging from 44° to 57°, with overnight lows between 33° and 47°. The average high for October is 52° with an average low of 39°. 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 Walla Walla. See also: November | December | January.