S
M
T
W
T
F
S
27
96°
65°
28
93°
64°
29
90°
64°
30
89°
64°
1
89°
65°
2
90°
62°
3
89°
59°
4
90°
60°
5
89°
61°
6
87°
57°
7
87°
57°
8
88°
60°
9
96°
64°
10
87°
67°
11
88°
62°
12
92°
61°
13
88°
62°
14
89°
61°
15
90°
60°
16
93°
59°
17
93°
57°
18
91°
56°
19
87°
53°
20
86°
52°
21
86°
59°
22
84°
53°
23
81°
46°
24
79°
46°
25
79°
47°
26
81°
46°
27
80°
51°
28
80°
55°
29
79°
53°
30
84°
56°
31
85°
50°
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 79° to 96°, with overnight lows between 46° and 67°. The average high for October is 87° with an average low of 58°. 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.