S
M
T
W
T
F
S
1
79°
46°
2
71°
45°
3
71°
46°
4
69°
54°
5
70°
49°
6
77°
54°
7
69°
55°
8
74°
46°
9
75°
42°
10
67°
42°
11
67°
44°
12
66°
43°
13
66°
44°
14
67°
42°
15
64°
42°
16
63°
43°
17
66°
48°
18
70°
47°
19
65°
52°
20
66°
49°
21
65°
48°
22
64°
42°
23
64°
37°
24
62°
37°
25
60°
39°
26
61°
38°
27
63°
40°
28
63°
50°
29
64°
51°
30
69°
48°
1
72°
39°
2
63°
42°
3
64°
39°
4
61°
35°
5
60°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
November Weather in San Marcos
San Marcos's November 2026 forecast shows daily high temperatures ranging from 60° to 79°, with overnight lows between 35° and 55°. The average high for November is 67° with an average low of 44°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how November weather will actually feel in San Marcos. See also: December | January | February.