S
M
T
W
T
F
S
30
92°
75°
31
90°
75°
1
91°
75°
2
94°
74°
3
94°
78°
4
86°
73°
5
90°
75°
6
94°
73°
7
96°
73°
8
91°
72°
9
96°
73°
10
88°
73°
11
88°
73°
12
89°
74°
13
90°
72°
14
93°
71°
15
91°
70°
16
89°
69°
17
90°
68°
18
89°
68°
19
88°
65°
20
85°
64°
21
87°
63°
22
87°
63°
23
89°
67°
24
89°
67°
25
88°
66°
26
85°
66°
27
87°
65°
28
87°
65°
29
86°
64°
30
87°
65°
1
87°
65°
2
85°
64°
3
86°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Greensburg
Greensburg's September 2026 forecast shows daily high temperatures ranging from 85° to 96°, with overnight lows between 63° and 74°. The average high for September is 88° with an average low of 67°. 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.
