S
M
T
W
T
F
S
28
83°
46°
29
82°
47°
30
81°
49°
1
83°
50°
2
86°
49°
3
83°
51°
4
83°
56°
5
90°
54°
6
94°
53°
7
93°
55°
8
94°
55°
9
95°
54°
10
94°
56°
11
94°
53°
12
95°
51°
13
93°
50°
14
89°
51°
15
92°
55°
16
93°
54°
17
92°
52°
18
92°
56°
19
Hist. Avg.
97°
66°
20
Hist. Avg.
97°
66°
21
Hist. Avg.
97°
66°
22
Hist. Avg.
97°
66°
23
Hist. Avg.
97°
66°
24
Hist. Avg.
97°
66°
25
Hist. Avg.
97°
66°
26
Hist. Avg.
97°
66°
27
Hist. Avg.
97°
66°
28
Hist. Avg.
97°
66°
29
Hist. Avg.
97°
66°
30
Hist. Avg.
97°
66°
31
Hist. Avg.
97°
66°
1
Hist. Avg.
97°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Diamond Bar B Ranch
Diamond Bar B Ranch's July 2026 forecast shows daily high temperatures ranging from 81° to 95°, with overnight lows between 46° and 56°. The average high for July is 90° with an average low of 52°. 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 Diamond Bar B Ranch. See also: August | September | October.