S
M
T
W
T
F
S
27
74°
46°
28
72°
40°
29
73°
54°
30
74°
49°
1
78°
52°
2
78°
51°
3
84°
52°
4
83°
52°
5
80°
48°
6
75°
49°
7
76°
50°
8
78°
51°
9
77°
49°
10
78°
49°
11
77°
48°
12
74°
50°
13
65°
43°
14
66°
47°
15
60°
47°
16
63°
40°
17
66°
38°
18
67°
42°
19
68°
46°
20
69°
47°
21
65°
45°
22
60°
45°
23
59°
46°
24
63°
46°
25
62°
45°
26
58°
42°
27
57°
38°
28
61°
42°
29
58°
44°
30
56°
42°
31
61°
44°
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 56° to 84°, with overnight lows between 38° and 52°. The average high for October is 69° with an average low of 46°. 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.