S
M
T
W
T
F
S
27
72°
63°
28
75°
61°
29
70°
61°
30
73°
66°
1
68°
46°
2
68°
39°
3
75°
48°
4
73°
41°
5
77°
41°
6
82°
54°
7
79°
46°
8
81°
45°
9
86°
59°
10
88°
63°
11
90°
63°
12
88°
52°
13
59°
48°
14
55°
45°
15
52°
45°
16
52°
30°
17
59°
28°
18
68°
41°
19
68°
43°
20
72°
37°
21
77°
54°
22
79°
48°
23
79°
59°
24
77°
52°
25
68°
48°
26
64°
46°
27
61°
48°
28
75°
54°
29
66°
41°
30
58°
51°
31
68°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Denison
Denison's October 2026 forecast shows daily high temperatures ranging from 58° to 68°, with overnight lows between 51° and 56°. The average high for October is 63° with an average low of 54°. 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 Denison. See also: November | December | January.
