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