S
M
T
W
T
F
S
27
68°
48°
28
65°
46°
29
66°
47°
30
65°
44°
1
70°
54°
2
71°
52°
3
75°
51°
4
64°
44°
5
62°
43°
6
60°
42°
7
59°
41°
8
60°
40°
9
59°
40°
10
60°
41°
11
60°
41°
12
59°
40°
13
59°
40°
14
62°
42°
15
65°
46°
16
67°
45°
17
66°
46°
18
66°
46°
19
65°
48°
20
66°
49°
21
59°
45°
22
55°
42°
23
56°
38°
24
54°
37°
25
54°
46°
26
59°
37°
27
57°
38°
28
52°
45°
29
53°
37°
30
52°
42°
31
56°
37°
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 52° to 75°, with overnight lows between 37° and 54°. The average high for October is 61° with an average low of 43°. 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.