S
M
T
W
T
F
S
29
64°
38°
30
61°
37°
1
59°
38°
2
61°
41°
3
66°
48°
4
70°
50°
5
71°
46°
6
73°
49°
7
71°
40°
8
70°
41°
9
60°
47°
10
71°
48°
11
64°
46°
12
69°
48°
13
71°
48°
14
70°
47°
15
70°
37°
16
69°
34°
17
58°
35°
18
58°
36°
19
59°
38°
20
57°
40°
21
58°
47°
22
67°
46°
23
70°
36°
24
65°
33°
25
57°
34°
26
56°
36°
27
57°
45°
28
63°
44°
29
64°
44°
30
60°
40°
31
64°
32°
1
68°
31°
2
54°
32°
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 54° to 73°, with overnight lows between 31° and 50°. The average high for December is 64° with an average low of 41°. 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.