S
M
T
W
T
F
S
26
82°
60°
27
81°
60°
28
81°
61°
29
82°
61°
30
81°
62°
31
80°
60°
1
80°
61°
2
82°
61°
3
82°
62°
4
83°
64°
5
86°
64°
6
82°
63°
7
83°
61°
8
86°
63°
9
87°
65°
10
88°
66°
11
86°
60°
12
84°
63°
13
85°
60°
14
81°
60°
15
82°
66°
16
86°
64°
17
88°
65°
18
87°
65°
19
Hist. Avg.
81°
63°
20
Hist. Avg.
81°
62°
21
Hist. Avg.
81°
62°
22
Hist. Avg.
81°
62°
23
Hist. Avg.
81°
62°
24
Hist. Avg.
81°
62°
25
Hist. Avg.
80°
62°
26
Hist. Avg.
80°
62°
27
Hist. Avg.
80°
61°
28
Hist. Avg.
80°
61°
29
Hist. Avg.
80°
61°
30
Hist. Avg.
80°
61°
31
Hist. Avg.
79°
60°
1
Hist. Avg.
79°
60°
2
Hist. Avg.
79°
60°
3
Hist. Avg.
79°
60°
4
Hist. Avg.
78°
60°
5
Hist. Avg.
78°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Pittsburgh
Pittsburgh's August 2026 forecast shows daily high temperatures ranging from 80° to 88°, with overnight lows between 60° and 66°. The average high for August is 84° with an average low of 62°. 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.