S
M
T
W
T
F
S
30
88°
74°
31
87°
75°
1
88°
73°
2
88°
72°
3
89°
71°
4
88°
71°
5
87°
72°
6
88°
72°
7
89°
71°
8
88°
72°
9
91°
73°
10
91°
73°
11
90°
71°
12
92°
73°
13
91°
74°
14
92°
73°
15
91°
73°
16
91°
72°
17
90°
73°
18
90°
73°
19
89°
72°
20
89°
73°
21
90°
71°
22
89°
72°
23
Hist. Avg.
88°
70°
24
Hist. Avg.
88°
69°
25
Hist. Avg.
88°
69°
26
Hist. Avg.
87°
69°
27
Hist. Avg.
87°
68°
28
Hist. Avg.
87°
68°
29
Hist. Avg.
87°
68°
30
Hist. Avg.
86°
68°
1
Hist. Avg.
86°
67°
2
Hist. Avg.
86°
67°
3
Hist. Avg.
86°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Springfield
Springfield's September 2026 forecast shows daily high temperatures ranging from 87° to 92°, with overnight lows between 71° and 75°. The average high for September is 89° with an average low of 72°. 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.