S
M
T
W
T
F
S
30
84°
61°
31
84°
63°
1
83°
64°
2
84°
63°
3
84°
55°
4
76°
54°
5
75°
55°
6
79°
62°
7
82°
62°
8
83°
61°
9
76°
56°
10
77°
61°
11
81°
60°
12
81°
61°
13
80°
61°
14
81°
60°
15
81°
59°
16
80°
59°
17
74°
56°
18
79°
51°
19
71°
49°
20
71°
49°
21
68°
47°
22
69°
55°
23
71°
51°
24
72°
47°
25
69°
49°
26
71°
55°
27
72°
54°
28
75°
55°
29
74°
54°
30
74°
52°
1
69°
53°
2
73°
52°
3
66°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Greentown
Greentown's September 2026 forecast shows daily high temperatures ranging from 66° to 84°, with overnight lows between 47° and 64°. The average high for September is 76° with an average low of 56°. 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 Greentown. See also: October | November | December.
