S
M
T
W
T
F
S
30
76°
44°
31
80°
44°
1
83°
45°
2
77°
43°
3
75°
44°
4
80°
42°
5
78°
38°
6
75°
41°
7
77°
40°
8
79°
44°
9
81°
45°
10
82°
42°
11
80°
43°
12
78°
42°
13
79°
43°
14
78°
42°
15
77°
41°
16
78°
38°
17
71°
34°
18
65°
37°
19
64°
28°
20
71°
38°
21
77°
41°
22
77°
39°
23
Hist. Avg.
71°
36°
24
Hist. Avg.
70°
35°
25
Hist. Avg.
70°
35°
26
Hist. Avg.
70°
35°
27
Hist. Avg.
69°
35°
28
Hist. Avg.
68°
34°
29
Hist. Avg.
68°
34°
30
Hist. Avg.
68°
34°
1
Hist. Avg.
67°
34°
2
Hist. Avg.
66°
33°
3
Hist. Avg.
66°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Greenough
Greenough's September 2026 forecast shows daily high temperatures ranging from 64° to 83°, with overnight lows between 28° and 45°. The average high for September is 77° with an average low of 41°. 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 Greenough. See also: October | November | December.
