S
M
T
W
T
F
S
27
78°
57°
28
79°
56°
29
78°
56°
30
77°
55°
1
77°
50°
2
76°
46°
3
66°
43°
4
63°
42°
5
64°
46°
6
68°
42°
7
64°
41°
8
61°
45°
9
64°
50°
10
67°
52°
11
72°
44°
12
71°
40°
13
61°
39°
14
62°
39°
15
59°
40°
16
60°
41°
17
63°
43°
18
68°
46°
19
69°
48°
20
70°
41°
21
66°
48°
22
69°
48°
23
70°
49°
24
67°
49°
25
69°
46°
26
69°
36°
27
67°
35°
28
56°
38°
29
59°
43°
30
61°
42°
31
57°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Pittsburgh
Pittsburgh's October 2026 forecast shows daily high temperatures ranging from 56° to 79°, with overnight lows between 35° and 57°. The average high for October is 67° with an average low of 45°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Pittsburgh. See also: November | December | January.