S
M
T
W
T
F
S
29
43°
29°
30
52°
39°
1
46°
39°
2
44°
38°
3
46°
38°
4
46°
39°
5
49°
37°
6
52°
38°
7
50°
35°
8
47°
29°
9
42°
26°
10
42°
33°
11
54°
24°
12
55°
22°
13
49°
21°
14
38°
27°
15
43°
22°
16
40°
29°
17
48°
34°
18
50°
34°
19
53°
35°
20
53°
34°
21
52°
33°
22
51°
36°
23
55°
24°
24
54°
18°
25
47°
16°
26
34°
20°
27
38°
29°
28
41°
35°
29
51°
36°
30
53°
37°
31
54°
35°
1
56°
24°
2
56°
20°
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 34° to 56°, with overnight lows between 16° and 39°. The average high for December is 48° with an average low of 30°. 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.
