S
M
T
W
T
F
S
30
92°
75°
31
90°
75°
1
91°
75°
2
94°
74°
3
94°
78°
4
86°
73°
5
88°
74°
6
93°
74°
7
94°
73°
8
89°
75°
9
88°
73°
10
90°
72°
11
90°
71°
12
92°
72°
13
90°
71°
14
91°
70°
15
92°
71°
16
93°
71°
17
91°
70°
18
87°
67°
19
84°
69°
20
85°
70°
21
89°
70°
22
89°
70°
23
88°
69°
24
89°
69°
25
88°
68°
26
88°
68°
27
86°
67°
28
85°
67°
29
83°
68°
30
85°
67°
1
85°
63°
2
82°
59°
3
79°
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 79° to 94°, with overnight lows between 58° and 75°. 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.
