S
M
T
W
T
F
S
30
92°
73°
31
89°
73°
1
90°
72°
2
91°
73°
3
92°
73°
4
92°
72°
5
87°
72°
6
89°
73°
7
89°
72°
8
88°
72°
9
91°
71°
10
91°
72°
11
90°
72°
12
90°
71°
13
87°
70°
14
87°
68°
15
87°
69°
16
90°
71°
17
91°
70°
18
90°
66°
19
88°
67°
20
84°
65°
21
85°
66°
22
86°
67°
23
87°
63°
24
89°
65°
25
89°
66°
26
87°
67°
27
83°
65°
28
82°
63°
29
86°
63°
30
86°
65°
1
87°
63°
2
86°
63°
3
87°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Springfield
Springfield's September 2026 forecast shows daily high temperatures ranging from 82° to 92°, with overnight lows between 62° and 73°. The average high for September is 88° with an average low of 68°. 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 Springfield. See also: October | November | December.
