S
M
T
W
T
F
S
29
43°
29°
30
44°
31°
1
45°
33°
2
51°
30°
3
49°
32°
4
47°
36°
5
51°
37°
6
51°
34°
7
50°
25°
8
49°
27°
9
41°
29°
10
43°
33°
11
48°
32°
12
41°
33°
13
43°
35°
14
48°
32°
15
49°
26°
16
48°
26°
17
40°
23°
18
42°
24°
19
37°
27°
20
41°
29°
21
42°
33°
22
45°
31°
23
47°
27°
24
41°
23°
25
36°
23°
26
36°
28°
27
44°
29°
28
44°
23°
29
41°
22°
30
36°
26°
31
39°
12°
1
38°
10°
2
25°
13°
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 25° to 51°, with overnight lows between 10° and 37°. The average high for December is 43° with an average low of 28°. 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.
