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