S
M
T
W
T
F
S
29
40°
28°
30
43°
29°
1
42°
28°
2
40°
29°
3
43°
27°
4
42°
26°
5
41°
25°
6
40°
27°
7
42°
25°
8
40°
23°
9
32°
23°
10
35°
22°
11
36°
23°
12
35°
23°
13
36°
16°
14
37°
11°
15
31°
6°
16
25°
5°
17
24°
9°
18
23°
17°
19
29°
19°
20
34°
16°
21
32°
9°
22
28°
11°
23
30°
2°
24
27°
3°
25
22°
14°
26
29°
8°
27
29°
7°
28
22°
9°
29
24°
7°
30
22°
2°
31
23°
16°
1
32°
15°
2
34°
10°
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 22° to 43°, with overnight lows between 2° and 29°. The average high for December is 33° with an average low of 16°. 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.
