S
M
T
W
T
F
S
30
88°
67°
31
91°
68°
1
82°
61°
2
79°
59°
3
79°
58°
4
83°
60°
5
81°
61°
6
77°
55°
7
79°
60°
8
81°
61°
9
83°
63°
10
82°
58°
11
81°
59°
12
83°
62°
13
75°
58°
14
77°
59°
15
81°
61°
16
83°
61°
17
83°
60°
18
82°
56°
19
73°
51°
20
74°
54°
21
79°
58°
22
80°
57°
23
81°
54°
24
71°
48°
25
70°
53°
26
70°
48°
27
69°
51°
28
75°
56°
29
78°
56°
30
73°
55°
1
74°
47°
2
67°
45°
3
68°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Greendale
Greendale's September 2026 forecast shows daily high temperatures ranging from 67° to 91°, with overnight lows between 45° and 68°. The average high for September is 78° with an average low of 57°. 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 Greendale. See also: October | November | December.
