S
M
T
W
T
F
S
28
87°
56°
29
90°
59°
30
94°
57°
1
93°
56°
2
91°
58°
3
92°
62°
4
96°
63°
5
98°
62°
6
96°
63°
7
96°
61°
8
97°
63°
9
99°
62°
10
96°
64°
11
97°
63°
12
98°
67°
13
97°
66°
14
97°
66°
15
96°
65°
16
96°
66°
17
95°
65°
18
96°
64°
19
96°
65°
20
95°
64°
21
92°
62°
22
93°
63°
23
96°
66°
24
98°
66°
25
96°
64°
26
95°
65°
27
95°
66°
28
97°
65°
29
98°
66°
30
97°
65°
31
97°
66°
1
98°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Barstow
Barstow's July 2026 forecast shows daily high temperatures ranging from 87° to 99°, with overnight lows between 56° and 67°. The average high for July is 95° with an average low of 63°. 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 Barstow. See also: August | September | October.