S
M
T
W
T
F
S
29
88°
63°
30
76°
60°
31
67°
57°
1
70°
56°
2
69°
54°
3
78°
52°
4
85°
69°
5
86°
64°
6
81°
60°
7
80°
54°
8
82°
59°
9
77°
56°
10
72°
57°
11
71°
55°
12
66°
52°
13
64°
52°
14
72°
49°
15
75°
51°
16
73°
54°
17
78°
51°
18
82°
57°
19
78°
56°
20
76°
53°
21
64°
51°
22
69°
50°
23
76°
56°
24
73°
54°
25
65°
54°
26
64°
53°
27
65°
52°
28
74°
49°
29
77°
50°
30
77°
53°
1
82°
54°
2
81°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Sylmar
Sylmar's April 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for April is ° with an average low of °. 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 Sylmar. See also: May | June | July.
