S
M
T
W
T
F
S
30
69°
49°
31
62°
45°
1
60°
44°
2
59°
44°
3
58°
39°
4
57°
44°
5
56°
43°
6
58°
39°
7
56°
35°
8
54°
37°
9
56°
33°
10
54°
37°
11
54°
35°
12
55°
36°
13
54°
35°
14
61°
35°
15
65°
44°
16
66°
44°
17
67°
45°
18
66°
46°
19
67°
45°
20
65°
46°
21
64°
44°
22
65°
43°
23
63°
36°
24
59°
37°
25
62°
40°
26
61°
40°
27
59°
38°
28
59°
34°
29
57°
38°
30
58°
39°
1
59°
40°
2
60°
39°
3
60°
28°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Windfall
Windfall's September 2026 forecast shows daily high temperatures ranging from 54° to 69°, with overnight lows between 28° and 49°. The average high for September is 60° with an average low of 40°. 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 Windfall. See also: October | November | December.
