S
M
T
W
T
F
S
1
85°
68°
2
77°
66°
3
73°
59°
4
73°
58°
5
74°
59°
6
74°
58°
7
75°
58°
8
75°
56°
9
74°
57°
10
78°
66°
11
77°
67°
12
76°
66°
13
76°
60°
14
78°
65°
15
93°
67°
16
90°
66°
17
92°
67°
18
91°
67°
19
76°
62°
20
75°
62°
21
72°
59°
22
76°
57°
23
73°
58°
24
74°
57°
25
77°
58°
26
77°
66°
27
77°
65°
28
92°
62°
29
90°
64°
30
90°
67°
1
77°
64°
2
76°
57°
3
76°
60°
4
87°
65°
5
90°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Diamond Bar
Diamond Bar's June 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for June is ° with an average low of °. 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 Diamond Bar. See also: July | August | September.
