S
M
T
W
T
F
S
27
49°
44°
28
54°
34°
29
53°
31°
30
44°
30°
1
39°
32°
2
44°
31°
3
45°
34°
4
50°
43°
5
47°
43°
6
44°
40°
7
48°
40°
8
49°
38°
9
50°
32°
10
46°
39°
11
46°
38°
12
46°
37°
13
42°
36°
14
45°
35°
15
51°
41°
16
47°
34°
17
44°
30°
18
43°
37°
19
40°
38°
20
45°
33°
21
36°
30°
22
39°
31°
23
40°
39°
24
45°
42°
25
47°
38°
26
45°
38°
27
44°
40°
28
45°
42°
29
45°
42°
30
43°
32°
31
33°
24°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Whittier
Whittier's October 2026 forecast shows daily high temperatures ranging from 33° to 47°, with overnight lows between 24° and 42°. The average high for October is 42° with an average low of 36°. 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 Whittier. See also: November | December | January.