S
M
T
W
T
F
S
27
94°
75°
28
93°
75°
29
94°
74°
30
95°
75°
1
95°
74°
2
93°
74°
3
92°
73°
4
89°
73°
5
92°
72°
6
93°
74°
7
92°
74°
8
93°
73°
9
93°
73°
10
92°
72°
11
93°
72°
12
92°
68°
13
85°
64°
14
83°
63°
15
83°
63°
16
84°
64°
17
85°
70°
18
85°
66°
19
86°
62°
20
81°
62°
21
81°
63°
22
83°
68°
23
91°
68°
24
92°
68°
25
87°
61°
26
90°
60°
27
83°
62°
28
82°
67°
29
85°
67°
30
89°
60°
31
89°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in McAllen
McAllen's October 2026 forecast shows daily high temperatures ranging from 81° to 95°, with overnight lows between 58° and 75°. The average high for October is 89° with an average low of 68°. 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 McAllen. See also: November | December | January.
