S
M
T
W
T
F
S
31
84°
54°
1
82°
56°
2
82°
57°
3
85°
59°
4
87°
60°
5
83°
59°
6
79°
56°
7
76°
53°
8
78°
55°
9
84°
58°
10
87°
58°
11
85°
60°
12
86°
61°
13
85°
60°
14
84°
57°
15
87°
61°
16
87°
61°
17
88°
60°
18
88°
61°
19
87°
61°
20
87°
60°
21
88°
61°
22
88°
62°
23
89°
62°
24
89°
61°
25
88°
62°
26
87°
61°
27
88°
60°
28
87°
58°
29
86°
59°
30
88°
60°
1
88°
61°
2
90°
63°
3
90°
64°
4
89°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in San Dimas
San Dimas's June 2026 forecast shows daily high temperatures ranging from 76° to 90°, with overnight lows between 53° and 64°. The average high for June is 86° 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 Dimas. See also: July | August | September.
