S
M
T
W
T
F
S
27
70°
48°
28
77°
53°
29
70°
44°
30
71°
53°
1
71°
41°
2
76°
40°
3
71°
39°
4
61°
41°
5
62°
42°
6
63°
44°
7
67°
50°
8
69°
52°
9
67°
52°
10
72°
51°
11
74°
43°
12
72°
38°
13
59°
41°
14
58°
39°
15
57°
37°
16
58°
37°
17
59°
39°
18
60°
42°
19
64°
45°
20
64°
45°
21
66°
48°
22
67°
45°
23
68°
37°
24
60°
40°
25
62°
38°
26
61°
37°
27
59°
42°
28
53°
41°
29
52°
42°
30
Hist. Avg.
59°
37°
31
Hist. Avg.
59°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Walnut
Walnut's October 2026 forecast shows daily high temperatures ranging from 52° to 77°, with overnight lows between 37° and 53°. The average high for October is 65° 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.
