S
M
T
W
T
F
S
29
88°
55°
30
73°
54°
31
69°
62°
1
70°
59°
2
68°
56°
3
82°
54°
4
86°
58°
5
84°
54°
6
78°
58°
7
77°
56°
8
78°
55°
9
74°
58°
10
75°
59°
11
71°
57°
12
65°
55°
13
64°
51°
14
71°
50°
15
73°
51°
16
73°
54°
17
76°
52°
18
83°
56°
19
77°
51°
20
76°
51°
21
70°
51°
22
69°
50°
23
70°
51°
24
71°
50°
25
73°
52°
26
74°
50°
27
72°
51°
28
75°
52°
29
74°
53°
30
74°
49°
1
76°
50°
2
77°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Rancho Santa Margarita
Rancho Santa Margarita's April 2026 forecast shows daily high temperatures ranging from 69° to 83°, with overnight lows between 49° and 56°. The average high for April is 74° with an average low of 51°. 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 Rancho Santa Margarita. See also: May | June | July.
