S
M
T
W
T
F
S
30
91°
71°
31
93°
71°
1
93°
70°
2
92°
72°
3
88°
70°
4
89°
73°
5
90°
73°
6
92°
72°
7
91°
71°
8
91°
72°
9
90°
72°
10
91°
71°
11
86°
71°
12
85°
70°
13
84°
71°
14
85°
71°
15
86°
70°
16
85°
71°
17
87°
70°
18
87°
70°
19
88°
69°
20
89°
70°
21
90°
70°
22
90°
69°
23
89°
69°
24
89°
68°
25
88°
69°
26
89°
69°
27
90°
68°
28
89°
68°
29
88°
67°
30
85°
67°
1
86°
66°
2
83°
59°
3
82°
58°
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 93°, with overnight lows between 58° and 73°. The average high for September is 88° 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.
