S
M
T
W
T
F
S
27
N/A
28
76°
42°
29
86°
44°
30
86°
49°
1
89°
50°
2
94°
49°
3
99°
51°
4
94°
54°
5
95°
56°
6
98°
54°
7
96°
55°
8
89°
55°
9
74°
54°
10
73°
52°
11
61°
48°
12
63°
44°
13
71°
37°
14
78°
39°
15
87°
38°
16
90°
42°
17
90°
51°
18
84°
46°
19
72°
43°
20
71°
42°
21
67°
52°
22
61°
49°
23
65°
49°
24
73°
45°
25
73°
47°
26
72°
47°
27
72°
45°
28
67°
49°
29
67°
51°
30
65°
48°
31
64°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Santa Margarita
Santa Margarita's October 2026 forecast shows daily high temperatures ranging from 64° to 73°, with overnight lows between 45° and 51°. The average high for October is 69° with an average low of 47°. 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 Santa Margarita. See also: November | December | January.