S
M
T
W
T
F
S
30
80°
61°
31
79°
69°
1
80°
67°
2
75°
70°
3
81°
70°
4
84°
66°
5
79°
61°
6
76°
63°
7
76°
62°
8
75°
61°
9
76°
62°
10
79°
62°
11
76°
64°
12
78°
63°
13
77°
62°
14
75°
60°
15
71°
59°
16
72°
63°
17
74°
58°
18
70°
55°
19
69°
55°
20
70°
59°
21
74°
62°
22
77°
63°
23
78°
62°
24
77°
61°
25
75°
60°
26
75°
60°
27
76°
61°
28
75°
60°
29
74°
58°
30
67°
53°
1
65°
53°
2
67°
58°
3
72°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Wyandanch
Wyandanch's September 2026 forecast shows daily high temperatures ranging from 65° to 84°, with overnight lows between 53° and 70°. The average high for September is 75° with an average low of 61°. 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 Wyandanch. See also: October | November | December.
