S
M
T
W
T
F
S
30
83°
64°
31
86°
68°
1
85°
66°
2
81°
65°
3
80°
64°
4
81°
63°
5
71°
56°
6
71°
54°
7
74°
61°
8
76°
61°
9
77°
60°
10
72°
59°
11
72°
60°
12
74°
59°
13
76°
59°
14
78°
60°
15
78°
60°
16
77°
59°
17
75°
60°
18
78°
59°
19
72°
59°
20
75°
58°
21
76°
59°
22
75°
59°
23
76°
58°
24
73°
56°
25
67°
54°
26
68°
55°
27
73°
55°
28
74°
54°
29
74°
55°
30
73°
55°
1
74°
54°
2
74°
56°
3
72°
56°
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 67° to 86°, with overnight lows between 54° and 68°. The average high for September is 75° with an average low of 59°. 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.
