S
M
T
W
T
F
S
1
84°
57°
2
70°
52°
3
72°
48°
4
66°
50°
5
73°
52°
6
73°
50°
7
73°
50°
8
86°
54°
9
70°
50°
10
68°
52°
11
75°
48°
12
91°
63°
13
91°
63°
14
79°
52°
15
77°
48°
16
90°
54°
17
93°
63°
18
91°
63°
19
93°
61°
20
95°
63°
21
84°
54°
22
82°
52°
23
77°
54°
24
79°
55°
25
81°
54°
26
84°
52°
27
82°
50°
28
86°
54°
29
86°
57°
30
72°
55°
31
68°
61°
1
72°
52°
2
68°
50°
3
81°
50°
4
88°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Fallbrook
Fallbrook's March 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for March 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 March weather will actually feel in Fallbrook. See also: April | May | June.
