S
M
T
W
T
F
S
30
89°
73°
31
88°
73°
1
89°
72°
2
87°
72°
3
87°
71°
4
89°
72°
5
88°
72°
6
87°
71°
7
87°
71°
8
88°
70°
9
89°
70°
10
88°
72°
11
92°
66°
12
91°
66°
13
90°
69°
14
91°
65°
15
88°
66°
16
89°
67°
17
90°
66°
18
87°
69°
19
90°
69°
20
90°
68°
21
89°
66°
22
88°
63°
23
84°
63°
24
84°
62°
25
83°
62°
26
83°
63°
27
84°
61°
28
88°
62°
29
86°
64°
30
88°
61°
1
88°
61°
2
87°
59°
3
88°
57°
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 83° to 92°, with overnight lows between 57° and 73°. The average high for September is 88° with an average low of 67°. 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.
