S
M
T
W
T
F
S
27
77°
56°
28
75°
56°
29
72°
56°
30
74°
55°
1
73°
54°
2
75°
54°
3
72°
53°
4
75°
52°
5
64°
52°
6
67°
53°
7
69°
48°
8
62°
41°
9
60°
48°
10
68°
50°
11
70°
51°
12
71°
51°
13
70°
50°
14
70°
50°
15
69°
48°
16
70°
44°
17
57°
47°
18
57°
48°
19
60°
47°
20
61°
47°
21
65°
41°
22
54°
37°
23
54°
39°
24
61°
43°
25
63°
46°
26
57°
35°
27
58°
37°
28
59°
45°
29
62°
44°
30
61°
47°
31
62°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Walnut
Walnut's October 2026 forecast shows daily high temperatures ranging from 54° to 77°, with overnight lows between 35° and 56°. The average high for October is 66° with an average low of 48°. 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 Walnut. See also: November | December | January.
