S
M
T
W
T
F
S
30
78°
66°
31
78°
71°
1
82°
68°
2
76°
70°
3
84°
70°
4
84°
65°
5
79°
61°
6
77°
63°
7
78°
62°
8
79°
60°
9
79°
63°
10
81°
64°
11
79°
61°
12
80°
62°
13
79°
61°
14
77°
60°
15
74°
59°
16
73°
64°
17
76°
57°
18
72°
55°
19
72°
55°
20
73°
58°
21
76°
62°
22
79°
63°
23
80°
63°
24
79°
61°
25
78°
58°
26
78°
60°
27
79°
61°
28
78°
61°
29
77°
58°
30
71°
53°
1
68°
52°
2
70°
57°
3
75°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in South Hempstead
South Hempstead's September 2026 forecast shows daily high temperatures ranging from 68° to 84°, with overnight lows between 52° and 70°. The average high for September is 77° 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 South Hempstead. See also: October | November | December.
