S
M
T
W
T
F
S
30
94°
64°
31
99°
73°
1
98°
72°
2
100°
73°
3
102°
73°
4
102°
75°
5
99°
75°
6
90°
68°
7
89°
70°
8
89°
70°
9
93°
72°
10
85°
66°
11
82°
63°
12
86°
64°
13
88°
66°
14
86°
67°
15
84°
61°
16
82°
59°
17
83°
61°
18
81°
58°
19
80°
57°
20
77°
54°
21
84°
59°
22
77°
59°
23
80°
58°
24
82°
60°
25
83°
60°
26
82°
59°
27
82°
59°
28
83°
58°
29
82°
59°
30
82°
58°
1
81°
56°
2
79°
48°
3
68°
45°
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 68° to 93°, with overnight lows between 45° and 72°. The average high for September is 83° with an average low of 60°. 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.
