S
M
T
W
T
F
S
27
75°
57°
28
72°
58°
29
72°
62°
30
73°
67°
1
78°
68°
2
79°
62°
3
80°
57°
4
73°
56°
5
71°
56°
6
71°
59°
7
73°
57°
8
71°
56°
9
71°
60°
10
72°
62°
11
70°
63°
12
77°
65°
13
76°
62°
14
73°
60°
15
72°
57°
16
71°
55°
17
70°
55°
18
71°
56°
19
72°
53°
20
70°
55°
21
70°
54°
22
72°
52°
23
70°
53°
24
70°
54°
25
71°
57°
26
72°
58°
27
73°
52°
28
72°
55°
29
71°
56°
30
71°
56°
31
73°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in National City
National City's October 2026 forecast shows daily high temperatures ranging from 70° to 80°, with overnight lows between 52° and 68°. The average high for October is 73° 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 National City. See also: November | December | January.
