S
M
T
W
T
F
S
27
75°
53°
28
75°
53°
29
74°
52°
30
74°
53°
1
73°
54°
2
74°
52°
3
72°
50°
4
71°
49°
5
71°
50°
6
70°
50°
7
70°
49°
8
69°
48°
9
68°
48°
10
69°
46°
11
65°
45°
12
67°
44°
13
66°
42°
14
62°
41°
15
56°
42°
16
62°
42°
17
60°
34°
18
56°
32°
19
50°
33°
20
50°
33°
21
58°
30°
22
53°
26°
23
48°
28°
24
46°
29°
25
46°
27°
26
45°
26°
27
44°
26°
28
44°
31°
29
45°
27°
30
45°
28°
31
46°
21°
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 44° to 75°, with overnight lows between 21° and 54°. The average high for October is 61° with an average low of 40°. 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.