S
M
T
W
T
F
S
28
85°
52°
29
88°
55°
30
92°
58°
1
87°
55°
2
89°
55°
3
94°
57°
4
96°
59°
5
93°
68°
6
96°
58°
7
95°
58°
8
95°
61°
9
98°
65°
10
104°
64°
11
102°
66°
12
98°
69°
13
99°
70°
14
100°
73°
15
101°
70°
16
108°
71°
17
107°
70°
18
105°
69°
19
98°
63°
20
98°
67°
21
99°
68°
22
100°
68°
23
100°
69°
24
99°
69°
25
100°
68°
26
100°
68°
27
99°
67°
28
99°
67°
29
98°
66°
30
99°
68°
31
98°
69°
1
99°
67°
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 95° to 108°, with overnight lows between 58° and 73°. The average high for July is 100° with an average low of 67°. 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.