S
M
T
W
T
F
S
27
90°
71°
28
82°
64°
29
85°
60°
30
85°
63°
1
90°
61°
2
104°
63°
3
103°
75°
4
101°
77°
5
102°
76°
6
100°
75°
7
99°
74°
8
95°
69°
9
89°
66°
10
80°
66°
11
69°
61°
12
66°
54°
13
74°
51°
14
82°
56°
15
91°
71°
16
94°
68°
17
92°
64°
18
90°
63°
19
88°
60°
20
75°
55°
21
74°
54°
22
76°
53°
23
80°
57°
24
79°
56°
25
80°
57°
26
80°
54°
27
78°
52°
28
80°
56°
29
81°
55°
30
81°
56°
31
80°
55°
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 74° to 94°, with overnight lows between 52° and 71°. The average high for October is 82° with an average low of 58°. 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.
