S
M
T
W
T
F
S
28
66°
41°
29
64°
34°
30
73°
36°
1
73°
37°
2
77°
46°
3
76°
44°
4
79°
47°
5
75°
46°
6
77°
47°
7
79°
46°
8
81°
47°
9
83°
49°
10
84°
51°
11
83°
49°
12
83°
51°
13
86°
52°
14
83°
54°
15
82°
51°
16
78°
49°
17
79°
50°
18
80°
52°
19
80°
53°
20
79°
54°
21
76°
53°
22
76°
53°
23
75°
50°
24
74°
49°
25
74°
49°
26
75°
50°
27
76°
51°
28
80°
53°
29
80°
53°
30
81°
54°
31
82°
54°
1
81°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Old Mammoth
Old Mammoth's July 2026 forecast shows daily high temperatures ranging from 74° to 86°, with overnight lows between 44° and 54°. The average high for July is 79° with an average low of 50°. 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 Old Mammoth. See also: August | September | October.
