S
M
T
W
T
F
S
26
94°
64°
27
94°
65°
28
93°
65°
29
94°
64°
30
94°
65°
31
93°
65°
1
94°
64°
2
94°
65°
3
93°
65°
4
94°
64°
5
93°
63°
6
94°
64°
7
94°
64°
8
95°
65°
9
95°
65°
10
94°
64°
11
93°
64°
12
92°
63°
13
92°
63°
14
91°
62°
15
92°
63°
16
91°
62°
17
90°
60°
18
90°
61°
19
91°
62°
20
90°
62°
21
94°
64°
22
93°
63°
23
92°
61°
24
93°
56°
25
90°
56°
26
87°
57°
27
87°
59°
28
86°
60°
29
85°
61°
30
86°
61°
31
88°
60°
1
89°
59°
2
85°
54°
3
84°
54°
4
84°
56°
5
85°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Cajon Junction
Cajon Junction's August 2026 forecast shows daily high temperatures ranging from 84° to 95°, with overnight lows between 54° and 65°. The average high for August is 91° with an average low of 62°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Cajon Junction. See also: September | October | November.
