S
M
T
W
T
F
S
26
62°
43°
27
61°
40°
28
63°
46°
29
64°
44°
30
70°
42°
1
64°
43°
2
64°
42°
3
62°
46°
4
73°
47°
5
64°
43°
6
62°
43°
7
64°
45°
8
70°
44°
9
66°
45°
10
64°
44°
11
64°
44°
12
66°
48°
13
76°
56°
14
78°
56°
15
78°
55°
16
79°
56°
17
75°
52°
18
73°
52°
19
72°
53°
20
78°
57°
21
74°
52°
22
70°
49°
23
71°
50°
24
70°
49°
25
73°
52°
26
77°
59°
27
81°
60°
28
82°
53°
29
81°
53°
30
73°
54°
31
74°
60°
1
82°
53°
2
76°
52°
3
74°
51°
4
73°
53°
5
75°
56°
6
77°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mechanicsburg
Mechanicsburg's May 2026 forecast shows daily high temperatures ranging from 61° to 82°, with overnight lows between 40° and 62°. The average high for May is 71° with an average low of 50°. 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 Mechanicsburg. See also: June | July | August.
