S
M
T
W
T
F
S
1
30°
18°
2
39°
21°
3
43°
28°
4
48°
27°
5
52°
36°
6
64°
34°
7
41°
30°
8
64°
36°
9
69°
45°
10
59°
36°
11
43°
30°
12
50°
25°
13
46°
32°
14
45°
30°
15
34°
10°
16
17°
4°
17
25°
3°
18
59°
21°
19
70°
32°
20
73°
43°
21
90°
45°
22
55°
34°
23
50°
21°
24
55°
32°
25
79°
39°
26
59°
37°
27
46°
21°
28
59°
16°
29
72°
36°
30
88°
41°
31
68°
39°
1
54°
37°
2
45°
37°
3
41°
34°
4
43°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Dayton
Dayton's March 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for March 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 March weather will actually feel in Dayton. See also: April | May | June.