S
M
T
W
T
F
S
31
91°
54°
1
87°
55°
2
87°
53°
3
91°
59°
4
96°
58°
5
99°
56°
6
89°
55°
7
84°
53°
8
85°
56°
9
85°
56°
10
84°
57°
11
86°
58°
12
91°
61°
13
96°
61°
14
95°
60°
15
93°
60°
16
89°
58°
17
90°
61°
18
91°
60°
19
88°
60°
20
89°
59°
21
87°
60°
22
85°
60°
23
87°
59°
24
88°
59°
25
88°
60°
26
90°
60°
27
92°
62°
28
93°
63°
29
94°
63°
30
93°
64°
1
94°
63°
2
93°
64°
3
93°
65°
4
94°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in San Jacinto
San Jacinto's June 2026 forecast shows daily high temperatures ranging from 84° to 99°, with overnight lows between 53° and 65°. The average high for June is 90° 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 Jacinto. See also: July | August | September.