S
M
T
W
T
F
S
30
89°
63°
31
90°
64°
1
89°
66°
2
88°
65°
3
87°
64°
4
86°
63°
5
79°
54°
6
75°
52°
7
78°
58°
8
80°
58°
9
82°
59°
10
78°
55°
11
78°
56°
12
81°
55°
13
82°
56°
14
83°
58°
15
84°
59°
16
82°
57°
17
82°
59°
18
78°
58°
19
72°
58°
20
80°
57°
21
80°
58°
22
79°
57°
23
80°
56°
24
79°
55°
25
73°
52°
26
74°
53°
27
78°
54°
28
78°
54°
29
77°
53°
30
78°
54°
1
78°
54°
2
77°
53°
3
76°
54°
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 72° to 90°, with overnight lows between 52° and 66°. The average high for September is 80° with an average low of 57°. 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.
