S
M
T
W
T
F
S
26
79°
62°
27
85°
65°
28
81°
68°
29
78°
65°
30
81°
59°
31
84°
60°
1
83°
66°
2
80°
69°
3
79°
63°
4
88°
71°
5
87°
70°
6
84°
69°
7
80°
69°
8
84°
68°
9
88°
70°
10
87°
72°
11
86°
67°
12
83°
64°
13
82°
66°
14
83°
65°
15
82°
65°
16
79°
63°
17
81°
62°
18
86°
65°
19
86°
66°
20
85°
64°
21
83°
61°
22
86°
65°
23
87°
66°
24
87°
66°
25
85°
65°
26
85°
66°
27
84°
65°
28
84°
64°
29
81°
63°
30
82°
64°
31
83°
63°
1
85°
60°
2
77°
56°
3
76°
55°
4
76°
56°
5
79°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Pittsburgh
Pittsburgh's August 2026 forecast shows daily high temperatures ranging from 76° to 88°, with overnight lows between 55° and 72°. The average high for August is 83° with an average low of 64°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Pittsburgh. See also: September | October | November.
