S
M
T
W
T
F
S
27
80°
61°
28
79°
60°
29
75°
59°
30
72°
58°
1
74°
60°
2
75°
60°
3
79°
58°
4
75°
59°
5
75°
58°
6
76°
56°
7
71°
54°
8
71°
49°
9
70°
50°
10
69°
52°
11
71°
52°
12
71°
53°
13
72°
54°
14
74°
52°
15
74°
54°
16
73°
54°
17
76°
53°
18
76°
49°
19
74°
49°
20
71°
50°
21
71°
51°
22
70°
48°
23
72°
50°
24
73°
52°
25
73°
50°
26
74°
49°
27
71°
47°
28
76°
53°
29
74°
52°
30
Hist. Avg.
74°
48°
31
Hist. Avg.
74°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Oceanside
Oceanside's October 2026 forecast shows daily high temperatures ranging from 69° to 80°, with overnight lows between 47° and 61°. The average high for October is 74° with an average low of 54°. 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 Oceanside. See also: November | December | January.