S
M
T
W
T
F
S
27
87°
63°
28
74°
57°
29
82°
52°
30
93°
55°
1
97°
58°
2
97°
60°
3
98°
63°
4
93°
64°
5
92°
58°
6
93°
58°
7
96°
56°
8
99°
57°
9
96°
57°
10
93°
52°
11
89°
46°
12
80°
40°
13
75°
39°
14
80°
43°
15
86°
46°
16
85°
47°
17
85°
46°
18
80°
42°
19
82°
46°
20
81°
45°
21
82°
46°
22
82°
45°
23
81°
45°
24
82°
44°
25
81°
45°
26
81°
44°
27
78°
39°
28
69°
34°
29
69°
33°
30
68°
34°
31
70°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Mountain Mesa
Mountain Mesa's October 2026 forecast shows daily high temperatures ranging from 68° to 99°, with overnight lows between 33° and 58°. The average high for October is 83° with an average low of 45°. 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 Mountain Mesa. See also: November | December | January.