S
M
T
W
T
F
S
31
65°
53°
1
65°
56°
2
64°
58°
3
64°
58°
4
64°
58°
5
65°
59°
6
70°
59°
7
72°
59°
8
72°
60°
9
74°
60°
10
75°
62°
11
76°
60°
12
80°
60°
13
79°
61°
14
78°
60°
15
78°
61°
16
77°
60°
17
76°
61°
18
77°
61°
19
76°
60°
20
77°
58°
21
76°
59°
22
79°
61°
23
79°
62°
24
80°
62°
25
80°
61°
26
79°
62°
27
80°
62°
28
79°
59°
29
77°
57°
30
73°
56°
1
76°
58°
2
79°
60°
3
80°
62°
4
80°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in San Juan Capistrano
San Juan Capistrano's June 2026 forecast shows daily high temperatures ranging from 70° to 80°, with overnight lows between 56° and 62°. The average high for June is 77° with an average low of 60°. 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 San Juan Capistrano. See also: July | August | September.