S
M
T
W
T
F
S
26
72°
52°
27
68°
46°
28
55°
41°
29
59°
41°
30
55°
37°
1
54°
36°
2
64°
30°
3
75°
50°
4
79°
46°
5
59°
37°
6
57°
32°
7
66°
39°
8
77°
36°
9
70°
41°
10
73°
32°
11
73°
36°
12
81°
57°
13
77°
45°
14
81°
48°
15
90°
55°
16
77°
55°
17
79°
61°
18
70°
61°
19
64°
43°
20
55°
37°
21
57°
50°
22
66°
50°
23
72°
54°
24
84°
50°
25
88°
61°
26
90°
64°
27
90°
64°
28
88°
64°
29
84°
61°
30
79°
66°
31
77°
57°
1
88°
61°
2
82°
57°
3
84°
54°
4
84°
64°
5
82°
66°
6
86°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Dayton
Dayton's May 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Dayton. See also: June | July | August.
