S
M
T
W
T
F
S
26
90°
68°
27
88°
69°
28
89°
65°
29
87°
64°
30
87°
64°
31
88°
65°
1
87°
66°
2
89°
65°
3
95°
70°
4
96°
71°
5
95°
69°
6
93°
70°
7
94°
71°
8
95°
68°
9
94°
66°
10
90°
67°
11
91°
68°
12
93°
70°
13
92°
69°
14
92°
66°
15
89°
66°
16
89°
64°
17
86°
63°
18
85°
62°
19
85°
62°
20
83°
63°
21
83°
62°
22
84°
61°
23
84°
62°
24
85°
65°
25
86°
69°
26
89°
65°
27
87°
64°
28
90°
66°
29
90°
65°
30
89°
66°
31
87°
65°
1
83°
65°
2
83°
64°
3
86°
64°
4
87°
65°
5
86°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Mountain Pass
Mountain Pass's August 2026 forecast shows daily high temperatures ranging from 83° to 96°, with overnight lows between 61° and 71°. The average high for August is 89° with an average low of 66°. 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 Mountain Pass. See also: September | October | November.
