S
M
T
W
T
F
S
28
93°
59°
29
90°
57°
30
87°
57°
1
89°
60°
2
93°
63°
3
95°
64°
4
94°
65°
5
95°
63°
6
94°
62°
7
93°
63°
8
95°
64°
9
96°
66°
10
96°
66°
11
96°
65°
12
97°
66°
13
97°
66°
14
96°
65°
15
95°
62°
16
93°
61°
17
94°
63°
18
97°
66°
19
97°
66°
20
97°
64°
21
97°
66°
22
98°
67°
23
97°
66°
24
100°
68°
25
99°
67°
26
99°
67°
27
98°
66°
28
99°
67°
29
97°
64°
30
97°
63°
31
96°
62°
1
95°
60°
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 87° to 100°, with overnight lows between 57° and 68°. The average high for July is 95° with an average low of 64°. 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.