S
M
T
W
T
F
S
31
80°
52°
1
80°
53°
2
82°
54°
3
79°
54°
4
79°
55°
5
80°
55°
6
81°
56°
7
83°
55°
8
91°
58°
9
91°
55°
10
90°
52°
11
87°
53°
12
86°
55°
13
89°
56°
14
88°
58°
15
90°
58°
16
91°
60°
17
92°
60°
18
92°
59°
19
93°
60°
20
94°
61°
21
95°
63°
22
95°
61°
23
94°
62°
24
94°
60°
25
91°
63°
26
93°
57°
27
94°
59°
28
90°
60°
29
91°
57°
30
91°
56°
1
90°
55°
2
93°
57°
3
94°
59°
4
94°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Fallbrook
Fallbrook's June 2026 forecast shows daily high temperatures ranging from 79° to 95°, with overnight lows between 52° and 63°. The average high for June is 89° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Fallbrook. See also: July | August | September.
