S
M
T
W
T
F
S
27
70°
52°
28
64°
56°
29
69°
58°
30
73°
54°
1
82°
61°
2
74°
53°
3
66°
48°
4
72°
51°
5
65°
45°
6
61°
41°
7
72°
40°
8
70°
51°
9
70°
46°
10
69°
48°
11
62°
52°
12
68°
56°
13
82°
56°
14
76°
58°
15
65°
53°
16
74°
47°
17
51°
40°
18
60°
31°
19
66°
36°
20
66°
39°
21
65°
42°
22
63°
42°
23
65°
42°
24
66°
42°
25
67°
42°
26
72°
47°
27
68°
49°
28
70°
50°
29
64°
44°
30
66°
45°
31
55°
45°
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 55° to 72°, with overnight lows between 42° and 50°. The average high for October is 66° 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.