S
M
T
W
T
F
S
26
62°
48°
27
77°
50°
28
68°
54°
29
62°
47°
30
57°
44°
1
51°
41°
2
48°
35°
3
62°
35°
4
N/A
5
65°
45°
6
57°
40°
7
56°
40°
8
62°
50°
9
70°
53°
10
67°
50°
11
63°
43°
12
64°
47°
13
70°
52°
14
68°
49°
15
69°
51°
16
75°
55°
17
78°
53°
18
75°
58°
19
76°
57°
20
78°
52°
21
75°
53°
22
70°
49°
23
68°
49°
24
70°
51°
25
69°
53°
26
69°
51°
27
70°
51°
28
70°
52°
29
71°
52°
30
72°
55°
31
78°
60°
1
73°
55°
2
74°
54°
3
75°
59°
4
77°
59°
5
79°
62°
6
82°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Piqua
Piqua's May 2026 forecast shows daily high temperatures ranging from 56° to 82°, with overnight lows between 40° and 63°. The average high for May is 71° with an average low of 52°. 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 Piqua. See also: June | July | August.