S
M
T
W
T
F
S
27
95°
75°
28
81°
70°
29
81°
68°
30
82°
64°
1
91°
66°
2
93°
73°
3
98°
75°
4
101°
76°
5
98°
75°
6
99°
75°
7
102°
76°
8
105°
73°
9
103°
70°
10
102°
69°
11
98°
68°
12
98°
70°
13
97°
68°
14
96°
66°
15
97°
64°
16
90°
58°
17
91°
62°
18
92°
63°
19
82°
55°
20
85°
56°
21
88°
58°
22
88°
58°
23
90°
59°
24
90°
60°
25
89°
60°
26
89°
59°
27
88°
58°
28
79°
54°
29
76°
48°
30
76°
47°
31
77°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Mesa
Mesa's October 2026 forecast shows daily high temperatures ranging from 76° to 105°, with overnight lows between 47° and 76°. The average high for October is 92° with an average low of 63°. 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 Mesa. See also: November | December | January.