S
M
T
W
T
F
S
28
74°
61°
29
76°
60°
30
72°
61°
1
75°
59°
2
82°
59°
3
88°
56°
4
89°
59°
5
87°
65°
6
90°
62°
7
92°
61°
8
94°
64°
9
93°
63°
10
90°
62°
11
89°
63°
12
90°
65°
13
90°
66°
14
94°
69°
15
100°
71°
16
99°
70°
17
96°
70°
18
96°
66°
19
94°
67°
20
92°
66°
21
93°
63°
22
94°
67°
23
94°
66°
24
87°
62°
25
90°
64°
26
93°
66°
27
94°
67°
28
94°
67°
29
93°
66°
30
94°
67°
31
94°
67°
1
93°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in San Dimas
San Dimas's July 2026 forecast shows daily high temperatures ranging from 87° to 100°, with overnight lows between 62° and 71°. The average high for July is 93° with an average low of 66°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in San Dimas. See also: August | September | October.
