S
M
T
W
T
F
S
29
79°
58°
30
70°
57°
31
71°
64°
1
72°
61°
2
72°
60°
3
84°
57°
4
86°
55°
5
79°
58°
6
75°
62°
7
73°
58°
8
77°
59°
9
77°
59°
10
72°
60°
11
71°
56°
12
68°
54°
13
66°
55°
14
70°
56°
15
71°
60°
16
69°
59°
17
70°
58°
18
71°
60°
19
69°
59°
20
70°
60°
21
71°
55°
22
66°
54°
23
67°
53°
24
66°
53°
25
66°
52°
26
67°
54°
27
65°
53°
28
65°
53°
29
66°
54°
30
66°
53°
1
67°
53°
2
70°
56°
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 77°, with overnight lows between 52° and 60°. The average high for April is 69° with an average low of 56°. 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.