S
M
T
W
T
F
S
27
72°
30°
28
59°
41°
29
70°
36°
30
77°
37°
1
79°
32°
2
77°
34°
3
77°
36°
4
77°
36°
5
75°
37°
6
75°
39°
7
77°
36°
8
75°
38°
9
73°
36°
10
68°
43°
11
61°
36°
12
41°
27°
13
45°
24°
14
59°
33°
15
57°
29°
16
63°
31°
17
64°
30°
18
62°
28°
19
59°
30°
20
49°
27°
21
55°
25°
22
56°
27°
23
55°
28°
24
54°
28°
25
53°
27°
26
56°
31°
27
55°
31°
28
56°
30°
29
55°
31°
30
55°
31°
31
54°
27°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Mammoth Mountain Ski Area
Mammoth Mountain Ski Area's October 2026 forecast shows daily high temperatures ranging from 41° to 64°, with overnight lows between 24° and 33°. The average high for October is 55° with an average low of 29°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Mammoth Mountain Ski Area. See also: November | December | January.