S
M
T
W
T
F
S
29
42°
28°
30
46°
31°
1
45°
30°
2
44°
31°
3
46°
29°
4
44°
28°
5
44°
28°
6
42°
29°
7
44°
28°
8
38°
26°
9
35°
26°
10
35°
24°
11
36°
26°
12
35°
23°
13
36°
19°
14
37°
15°
15
32°
15°
16
29°
18°
17
31°
17°
18
30°
23°
19
34°
22°
20
38°
20°
21
34°
16°
22
31°
16°
23
29°
11°
24
31°
18°
25
30°
13°
26
35°
8°
27
27°
8°
28
23°
9°
29
27°
7°
30
25°
10°
31
26°
20°
1
39°
15°
2
37°
8°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Springfield
Springfield's December 2026 forecast shows daily high temperatures ranging from 23° to 46°, with overnight lows between 7° and 31°. The average high for December is 35° with an average low of 20°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Springfield. See also: January | February | March.
