S
M
T
W
T
F
S
26
75°
45°
27
74°
46°
28
75°
48°
29
77°
47°
30
79°
46°
31
78°
48°
1
79°
52°
2
78°
48°
3
75°
47°
4
79°
48°
5
80°
47°
6
81°
46°
7
81°
47°
8
79°
49°
9
77°
50°
10
75°
48°
11
77°
45°
12
76°
43°
13
75°
44°
14
75°
43°
15
76°
44°
16
74°
44°
17
75°
49°
18
77°
43°
19
Hist. Avg.
76°
45°
20
Hist. Avg.
76°
44°
21
Hist. Avg.
76°
44°
22
Hist. Avg.
76°
44°
23
Hist. Avg.
76°
44°
24
Hist. Avg.
75°
44°
25
Hist. Avg.
75°
44°
26
Hist. Avg.
75°
43°
27
Hist. Avg.
75°
43°
28
Hist. Avg.
74°
43°
29
Hist. Avg.
74°
43°
30
Hist. Avg.
74°
42°
31
Hist. Avg.
74°
42°
1
Hist. Avg.
73°
42°
2
Hist. Avg.
73°
42°
3
Hist. Avg.
73°
41°
4
Hist. Avg.
73°
41°
5
Hist. Avg.
72°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Mammoth Lakes
Mammoth Lakes's August 2026 forecast shows daily high temperatures ranging from 74° to 81°, with overnight lows between 43° and 52°. The average high for August is 77° 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.
