S
M
T
W
T
F
S
30
90°
69°
31
90°
70°
1
89°
70°
2
90°
69°
3
90°
69°
4
86°
63°
5
83°
60°
6
85°
59°
7
83°
58°
8
85°
59°
9
84°
63°
10
87°
66°
11
88°
65°
12
86°
65°
13
87°
64°
14
82°
65°
15
86°
65°
16
85°
64°
17
84°
64°
18
83°
62°
19
83°
63°
20
85°
61°
21
85°
61°
22
84°
62°
23
85°
61°
24
84°
63°
25
84°
61°
26
83°
54°
27
73°
51°
28
72°
49°
29
71°
50°
30
72°
59°
1
77°
51°
2
72°
48°
3
71°
54°
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 71° to 90°, with overnight lows between 48° and 70°. The average high for September is 83° 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 Springfield. See also: October | November | December.
