S
M
T
W
T
F
S
27
82°
55°
28
82°
55°
29
81°
54°
30
81°
54°
1
80°
48°
2
75°
44°
3
68°
42°
4
67°
41°
5
68°
50°
6
72°
40°
7
68°
38°
8
66°
46°
9
68°
49°
10
75°
49°
11
76°
39°
12
69°
38°
13
65°
37°
14
66°
37°
15
64°
38°
16
65°
39°
17
69°
41°
18
73°
45°
19
74°
46°
20
73°
45°
21
73°
46°
22
74°
46°
23
74°
45°
24
72°
46°
25
72°
43°
26
73°
34°
27
70°
34°
28
60°
41°
29
64°
42°
30
60°
35°
31
62°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Irvine
Irvine's October 2026 forecast shows daily high temperatures ranging from 60° to 82°, with overnight lows between 32° and 55°. The average high for October is 71° with an average low of 43°. 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 Irvine. See also: November | December | January.
