S
M
T
W
T
F
S
29
52°
40°
30
53°
42°
1
58°
42°
2
59°
41°
3
59°
43°
4
57°
41°
5
52°
40°
6
47°
38°
7
47°
31°
8
43°
28°
9
42°
26°
10
40°
24°
11
40°
24°
12
41°
25°
13
42°
27°
14
46°
38°
15
47°
39°
16
50°
37°
17
45°
31°
18
52°
37°
19
49°
32°
20
46°
32°
21
40°
27°
22
44°
33°
23
50°
24°
24
44°
21°
25
38°
17°
26
36°
24°
27
38°
35°
28
47°
36°
29
52°
24°
30
53°
23°
31
44°
29°
1
46°
20°
2
47°
17°
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 36° to 59°, with overnight lows between 17° and 43°. The average high for December is 47° with an average low of 31°. 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.