S
M
T
W
T
F
S
31
81°
55°
1
78°
54°
2
78°
55°
3
79°
56°
4
79°
57°
5
80°
58°
6
83°
59°
7
83°
58°
8
82°
59°
9
83°
59°
10
82°
57°
11
83°
58°
12
82°
60°
13
84°
62°
14
85°
61°
15
85°
60°
16
84°
57°
17
83°
56°
18
80°
54°
19
75°
55°
20
77°
56°
21
79°
58°
22
83°
59°
23
84°
60°
24
81°
59°
25
83°
60°
26
83°
62°
27
84°
63°
28
85°
61°
29
86°
59°
30
85°
57°
1
83°
58°
2
84°
60°
3
86°
59°
4
84°
63°
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 75° to 86°, with overnight lows between 54° and 63°. The average high for June is 82° 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.
