S
M
T
W
T
F
S
29
86°
57°
30
72°
55°
31
68°
61°
1
72°
52°
2
68°
50°
3
81°
50°
4
88°
55°
5
86°
55°
6
77°
57°
7
73°
54°
8
79°
50°
9
75°
52°
10
75°
59°
11
72°
55°
12
64°
52°
13
64°
50°
14
70°
46°
15
73°
50°
16
73°
52°
17
75°
52°
18
82°
52°
19
77°
54°
20
73°
54°
21
72°
52°
22
70°
48°
23
73°
48°
24
72°
50°
25
66°
54°
26
64°
52°
27
68°
50°
28
72°
46°
29
73°
48°
30
70°
52°
1
75°
55°
2
73°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Fallbrook
Fallbrook'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 Fallbrook. See also: May | June | July.
