S
M
T
W
T
F
S
30
84°
63°
31
82°
66°
1
N/A
2
89°
70°
3
89°
69°
4
81°
65°
5
79°
54°
6
77°
57°
7
79°
57°
8
78°
59°
9
81°
63°
10
81°
60°
11
75°
58°
12
75°
57°
13
74°
57°
14
75°
55°
15
74°
51°
16
72°
56°
17
74°
52°
18
72°
51°
19
77°
53°
20
78°
55°
21
77°
55°
22
75°
54°
23
74°
50°
24
71°
49°
25
75°
53°
26
76°
53°
27
74°
47°
28
65°
45°
29
64°
43°
30
64°
44°
1
63°
43°
2
68°
49°
3
69°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Greensburg
Greensburg's September 2026 forecast shows daily high temperatures ranging from 63° to 89°, with overnight lows between 43° and 70°. The average high for September is 75° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Greensburg. See also: October | November | December.
