S
M
T
W
T
F
S
27
77°
56°
28
79°
51°
29
71°
46°
30
70°
46°
1
71°
49°
2
78°
49°
3
78°
53°
4
77°
53°
5
78°
52°
6
77°
53°
7
78°
52°
8
77°
43°
9
75°
46°
10
68°
43°
11
65°
50°
12
66°
51°
13
68°
52°
14
74°
52°
15
76°
51°
16
74°
47°
17
73°
39°
18
70°
39°
19
61°
38°
20
62°
39°
21
60°
47°
22
66°
46°
23
70°
41°
24
65°
37°
25
58°
36°
26
57°
45°
27
64°
44°
28
67°
35°
29
63°
33°
30
55°
34°
31
68°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Dayton
Dayton's October 2026 forecast shows daily high temperatures ranging from 55° to 79°, with overnight lows between 33° and 56°. The average high for October is 70° 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 Dayton. See also: November | December | January.