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°
68°
19
90°
69°
20
89°
68°
21
88°
67°
22
87°
68°
23
90°
67°
24
88°
67°
25
86°
66°
26
86°
67°
27
85°
66°
28
85°
66°
29
86°
65°
30
88°
65°
1
87°
64°
2
87°
59°
3
85°
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 85° to 92°, with overnight lows between 57° and 73°. The average high for September is 89° with an average low of 69°. 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.
