S
M
T
W
T
F
S
30
91°
76°
31
90°
75°
1
90°
75°
2
88°
75°
3
89°
76°
4
90°
75°
5
91°
75°
6
90°
74°
7
91°
76°
8
90°
75°
9
92°
73°
10
91°
74°
11
89°
75°
12
87°
73°
13
88°
74°
14
87°
75°
15
87°
75°
16
86°
74°
17
85°
75°
18
84°
74°
19
86°
74°
20
85°
74°
21
84°
73°
22
83°
74°
23
83°
74°
24
82°
73°
25
83°
74°
26
83°
72°
27
84°
74°
28
85°
73°
29
86°
72°
30
85°
73°
1
84°
73°
2
83°
72°
3
82°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Space Center
Space Center's September 2026 forecast shows daily high temperatures ranging from 82° to 92°, with overnight lows between 72° and 76°. The average high for September is 86° with an average low of 74°. 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 Space Center. See also: October | November | December.