S
M
T
W
T
F
S
30
82°
59°
31
84°
61°
1
82°
61°
2
82°
59°
3
83°
52°
4
76°
52°
5
75°
57°
6
77°
59°
7
82°
56°
8
76°
56°
9
75°
57°
10
76°
58°
11
81°
58°
12
82°
58°
13
82°
58°
14
81°
57°
15
81°
56°
16
78°
56°
17
76°
49°
18
74°
48°
19
72°
46°
20
71°
45°
21
69°
46°
22
70°
52°
23
71°
46°
24
74°
48°
25
74°
53°
26
75°
52°
27
76°
53°
28
77°
50°
29
76°
49°
30
74°
47°
1
70°
48°
2
74°
50°
3
68°
42°
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 68° to 84°, with overnight lows between 42° and 61°. The average high for September is 76° with an average low of 53°. 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.
