S
M
T
W
T
F
S
30
96°
77°
31
95°
76°
1
94°
75°
2
93°
76°
3
95°
77°
4
95°
76°
5
94°
76°
6
88°
75°
7
91°
75°
8
91°
74°
9
93°
74°
10
93°
75°
11
94°
74°
12
94°
75°
13
92°
73°
14
93°
72°
15
94°
72°
16
92°
70°
17
93°
74°
18
93°
72°
19
90°
66°
20
87°
66°
21
86°
67°
22
89°
68°
23
91°
69°
24
91°
70°
25
90°
70°
26
91°
69°
27
89°
69°
28
89°
65°
29
88°
64°
30
89°
68°
1
90°
67°
2
90°
65°
3
89°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Spring
Spring's September 2026 forecast shows daily high temperatures ranging from 86° to 96°, with overnight lows between 64° and 77°. The average high for September is 91° with an average low of 71°. 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 Spring. See also: October | November | December.