S
M
T
W
T
F
S
31
80°
55°
1
87°
58°
2
87°
57°
3
86°
57°
4
86°
55°
5
88°
59°
6
88°
59°
7
82°
56°
8
84°
57°
9
87°
56°
10
88°
57°
11
89°
58°
12
90°
60°
13
90°
59°
14
84°
57°
15
84°
57°
16
90°
59°
17
90°
57°
18
89°
58°
19
89°
58°
20
91°
60°
21
90°
57°
22
87°
58°
23
92°
61°
24
93°
61°
25
94°
62°
26
95°
61°
27
94°
59°
28
94°
52°
29
91°
52°
30
88°
56°
1
88°
57°
2
93°
59°
3
95°
62°
4
95°
57°
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 80° to 95°, with overnight lows between 52° and 62°. The average high for June is 89° with an average low of 58°. 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.
