S
M
T
W
T
F
S
29
68°
30°
30
73°
57°
31
81°
61°
1
81°
61°
2
82°
57°
3
81°
63°
4
82°
57°
5
55°
39°
6
64°
32°
7
55°
33°
8
74°
48°
9
78°
51°
10
78°
55°
11
76°
53°
12
86°
65°
13
77°
60°
14
84°
62°
15
82°
58°
16
77°
51°
17
80°
53°
18
73°
54°
19
73°
54°
20
76°
57°
21
79°
43°
22
68°
42°
23
66°
49°
24
74°
51°
25
73°
49°
26
70°
44°
27
66°
41°
28
65°
44°
29
73°
50°
30
74°
52°
1
72°
52°
2
69°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Irvine
Irvine's April 2026 forecast shows daily high temperatures ranging from 65° to 86°, with overnight lows between 41° and 65°. The average high for April is 75° with an average low of 52°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Irvine. See also: May | June | July.