S
M
T
W
T
F
S
26
60°
43°
27
73°
41°
28
70°
50°
29
64°
47°
30
51°
42°
1
55°
34°
2
47°
34°
3
58°
34°
4
72°
48°
5
75°
59°
6
60°
46°
7
60°
41°
8
61°
41°
9
66°
48°
10
64°
47°
11
63°
42°
12
69°
41°
13
67°
47°
14
51°
43°
15
70°
50°
16
79°
63°
17
83°
63°
18
92°
69°
19
89°
66°
20
72°
49°
21
67°
48°
22
71°
51°
23
77°
56°
24
80°
57°
25
78°
59°
26
79°
60°
27
77°
61°
28
79°
54°
29
76°
60°
30
77°
58°
31
71°
55°
1
71°
52°
2
72°
51°
3
70°
51°
4
72°
52°
5
78°
60°
6
81°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Pittsburgh
Pittsburgh's May 2026 forecast shows daily high temperatures ranging from 67° to 92°, with overnight lows between 48° and 69°. The average high for May is 77° with an average low of 57°. 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 Pittsburgh. See also: June | July | August.
