S
M
T
W
T
F
S
28
66°
41°
29
64°
34°
30
73°
36°
1
73°
37°
2
77°
46°
3
81°
41°
4
82°
39°
5
75°
50°
6
81°
48°
7
84°
50°
8
86°
41°
9
86°
34°
10
88°
43°
11
88°
43°
12
82°
54°
13
75°
59°
14
75°
50°
15
81°
50°
16
86°
46°
17
84°
45°
18
84°
45°
19
84°
54°
20
81°
52°
21
79°
52°
22
71°
50°
23
79°
52°
24
79°
54°
25
76°
52°
26
78°
51°
27
77°
47°
28
79°
45°
29
78°
47°
30
77°
46°
31
77°
46°
1
80°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Mammoth Mountain Ski Area
Mammoth Mountain Ski Area's July 2026 forecast shows daily high temperatures ranging from 71° to 80°, with overnight lows between 45° and 54°. The average high for July is 77° with an average low of 49°. 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 Mammoth Mountain Ski Area. See also: August | September | October.