S
M
T
W
T
F
S
26
81°
53°
27
81°
54°
28
80°
54°
29
81°
53°
30
81°
54°
31
82°
55°
1
80°
53°
2
81°
54°
3
81°
53°
4
80°
54°
5
80°
53°
6
78°
53°
7
78°
52°
8
79°
53°
9
77°
52°
10
76°
50°
11
75°
46°
12
73°
45°
13
72°
45°
14
73°
46°
15
73°
46°
16
74°
49°
17
76°
45°
18
77°
44°
19
78°
45°
20
75°
44°
21
75°
44°
22
76°
45°
23
74°
46°
24
73°
43°
25
74°
43°
26
73°
44°
27
74°
43°
28
73°
41°
29
73°
43°
30
74°
43°
31
77°
44°
1
78°
42°
2
74°
41°
3
72°
41°
4
71°
42°
5
71°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Mammoth Lakes
Mammoth Lakes's August 2026 forecast shows daily high temperatures ranging from 71° to 82°, with overnight lows between 41° and 55°. The average high for August is 76° with an average low of 47°. 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 Mammoth Lakes. See also: September | October | November.
