S
M
T
W
T
F
S
30
87°
73°
31
87°
71°
1
88°
71°
2
87°
69°
3
87°
72°
4
88°
68°
5
88°
70°
6
90°
69°
7
88°
68°
8
89°
67°
9
90°
68°
10
92°
68°
11
91°
69°
12
91°
70°
13
90°
71°
14
90°
70°
15
89°
70°
16
89°
69°
17
87°
70°
18
87°
69°
19
88°
69°
20
86°
68°
21
90°
68°
22
90°
65°
23
89°
68°
24
88°
67°
25
88°
67°
26
87°
66°
27
88°
65°
28
86°
66°
29
83°
61°
30
83°
65°
1
86°
66°
2
85°
66°
3
85°
65°
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 61° 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.
