S
M
T
W
T
F
S
26
61°
45°
27
72°
39°
28
68°
52°
29
63°
45°
30
52°
36°
1
50°
39°
2
52°
35°
3
59°
43°
4
59°
44°
5
60°
48°
6
66°
52°
7
60°
44°
8
56°
39°
9
58°
42°
10
62°
43°
11
63°
45°
12
61°
46°
13
63°
47°
14
64°
48°
15
69°
50°
16
64°
49°
17
65°
50°
18
69°
54°
19
71°
54°
20
72°
53°
21
75°
55°
22
74°
55°
23
74°
54°
24
73°
51°
25
68°
49°
26
73°
56°
27
76°
56°
28
74°
55°
29
73°
55°
30
70°
52°
31
72°
55°
1
70°
54°
2
70°
53°
3
71°
49°
4
69°
48°
5
69°
49°
6
70°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Greensburg
Greensburg's May 2026 forecast shows daily high temperatures ranging from 50° to 76°, with overnight lows between 35° and 56°. The average high for May is 66° with an average low of 49°. 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 Greensburg. See also: June | July | August.
