S
M
T
W
T
F
S
30
74°
51°
31
70°
51°
1
69°
52°
2
72°
49°
3
75°
45°
4
73°
46°
5
74°
50°
6
74°
50°
7
73°
51°
8
74°
49°
9
72°
50°
10
74°
50°
11
73°
49°
12
72°
49°
13
72°
48°
14
71°
49°
15
72°
46°
16
72°
40°
17
70°
39°
18
63°
46°
19
65°
47°
20
71°
47°
21
69°
45°
22
69°
43°
23
66°
41°
24
69°
38°
25
Hist. Avg.
61°
43°
26
Hist. Avg.
60°
43°
27
Hist. Avg.
60°
42°
28
Hist. Avg.
60°
42°
29
Hist. Avg.
59°
42°
30
Hist. Avg.
59°
42°
1
Hist. Avg.
58°
41°
2
Hist. Avg.
58°
41°
3
Hist. Avg.
58°
41°
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 63° to 75°, with overnight lows between 38° and 52°. The average high for September is 71° with an average low of 47°. 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.