S
M
T
W
T
F
S
27
74°
54°
28
75°
52°
29
62°
49°
30
72°
49°
1
76°
52°
2
69°
51°
3
66°
52°
4
74°
52°
5
72°
48°
6
66°
44°
7
63°
41°
8
61°
37°
9
60°
35°
10
60°
42°
11
65°
47°
12
71°
47°
13
68°
48°
14
72°
46°
15
66°
41°
16
58°
38°
17
56°
33°
18
57°
36°
19
57°
44°
20
65°
45°
21
65°
44°
22
64°
43°
23
55°
41°
24
62°
44°
25
64°
40°
26
54°
34°
27
53°
29°
28
54°
41°
29
63°
42°
30
63°
32°
31
60°
30°
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 53° to 76°, with overnight lows between 29° and 54°. The average high for October is 64° 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 Walnut. See also: November | December | January.
