S
M
T
W
T
F
S
26
50°
32°
27
50°
30°
28
50°
25°
29
59°
19°
30
63°
36°
1
64°
30°
2
64°
34°
3
59°
32°
4
54°
36°
5
52°
34°
6
66°
32°
7
72°
32°
8
73°
27°
9
75°
41°
10
79°
36°
11
79°
37°
12
79°
45°
13
72°
46°
14
75°
36°
15
72°
32°
16
66°
41°
17
63°
27°
18
54°
19°
19
61°
28°
20
66°
30°
21
70°
30°
22
N/A
23
57°
33°
24
58°
33°
25
57°
33°
26
53°
23°
27
46°
28°
28
48°
31°
29
54°
31°
30
60°
32°
31
63°
36°
1
65°
37°
2
67°
38°
3
67°
37°
4
68°
40°
5
60°
36°
6
64°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Mammoth Mountain
Mammoth Mountain's May 2026 forecast shows daily high temperatures ranging from 46° to 68°, with overnight lows between 23° and 40°. The average high for May is 59° with an average low of 34°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Mammoth Mountain. See also: June | July | August.
