S
M
T
W
T
F
S
28
77°
61°
29
81°
61°
30
79°
62°
1
79°
62°
2
86°
59°
3
93°
58°
4
95°
63°
5
91°
67°
6
95°
65°
7
99°
64°
8
102°
64°
9
99°
66°
10
95°
64°
11
99°
64°
12
91°
68°
13
93°
72°
14
102°
70°
15
104°
73°
16
102°
73°
17
95°
70°
18
99°
70°
19
99°
69°
20
93°
73°
21
95°
73°
22
97°
71°
23
104°
72°
24
104°
76°
25
104°
71°
26
102°
73°
27
102°
73°
28
99°
69°
29
99°
65°
30
99°
64°
31
106°
68°
1
104°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in San Bernardino
San Bernardino's July 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for July 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 July weather will actually feel in San Bernardino. See also: August | September | October.