S
M
T
W
T
F
S
27
86°
71°
28
79°
68°
29
81°
64°
30
77°
67°
1
82°
67°
2
100°
67°
3
102°
72°
4
100°
76°
5
100°
76°
6
94°
75°
7
91°
71°
8
90°
70°
9
83°
69°
10
78°
68°
11
71°
63°
12
69°
61°
13
73°
58°
14
81°
58°
15
93°
59°
16
97°
71°
17
90°
74°
18
84°
66°
19
80°
64°
20
78°
65°
21
76°
64°
22
71°
60°
23
71°
60°
24
75°
58°
25
80°
59°
26
79°
60°
27
74°
59°
28
75°
60°
29
74°
64°
30
73°
63°
31
73°
62°
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 73° to 73°, with overnight lows between 62° and 62°. The average high for October is 73° with an average low of 62°. 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.
