S
M
T
W
T
F
S
26
66°
46°
27
71°
53°
28
68°
49°
29
64°
47°
30
61°
45°
1
59°
44°
2
60°
42°
3
61°
44°
4
64°
46°
5
68°
51°
6
65°
47°
7
67°
43°
8
70°
49°
9
72°
53°
10
74°
53°
11
72°
54°
12
73°
55°
13
74°
54°
14
72°
49°
15
67°
45°
16
68°
51°
17
77°
56°
18
78°
57°
19
77°
46°
20
67°
46°
21
67°
47°
22
68°
47°
23
68°
49°
24
76°
56°
25
79°
58°
26
79°
58°
27
77°
57°
28
70°
58°
29
74°
58°
30
73°
60°
31
76°
58°
1
80°
60°
2
77°
59°
3
75°
59°
4
74°
53°
5
79°
56°
6
82°
55°
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 59° to 82°, with overnight lows between 42° and 60°. 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 Pittsburgh. See also: June | July | August.
