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
93°
62°
8
94°
64°
9
95°
63°
10
90°
62°
11
89°
63°
12
85°
65°
13
90°
66°
14
94°
65°
15
96°
69°
16
99°
70°
17
96°
68°
18
96°
68°
19
94°
67°
20
92°
63°
21
93°
67°
22
94°
67°
23
94°
66°
24
93°
68°
25
95°
67°
26
94°
67°
27
94°
66°
28
93°
66°
29
94°
67°
30
94°
67°
31
93°
66°
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 85° to 99°, with overnight lows between 62° and 70°. 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.
