S
M
T
W
T
F
S
27
74°
56°
28
75°
51°
29
77°
56°
30
78°
57°
1
76°
57°
2
77°
55°
3
76°
55°
4
78°
54°
5
71°
54°
6
68°
55°
7
74°
52°
8
73°
44°
9
62°
41°
10
63°
49°
11
71°
51°
12
73°
52°
13
72°
51°
14
73°
51°
15
72°
50°
16
72°
49°
17
62°
46°
18
60°
48°
19
59°
48°
20
68°
49°
21
66°
41°
22
57°
36°
23
55°
36°
24
58°
43°
25
63°
44°
26
60°
34°
27
56°
34°
28
58°
40°
29
64°
43°
30
66°
45°
31
67°
48°
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 78°, with overnight lows between 34° and 57°. The average high for October is 68° with an average low of 48°. 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.