S
M
T
W
T
F
S
29
42°
21°
30
43°
22°
1
44°
23°
2
42°
21°
3
39°
24°
4
44°
24°
5
44°
23°
6
44°
15°
7
43°
12°
8
28°
19°
9
35°
20°
10
39°
20°
11
37°
19°
12
34°
21°
13
36°
21°
14
38°
16°
15
37°
14°
16
31°
15°
17
35°
10°
18
33°
19°
19
35°
19°
20
38°
20°
21
37°
17°
22
36°
13°
23
33°
8°
24
28°
13°
25
31°
15°
26
34°
18°
27
36°
14°
28
33°
8°
29
27°
10°
30
28°
5°
31
33°
0°
1
35°
-1°
2
18°
3°
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 18° to 44°, with overnight lows between -1° and 24°. The average high for December is 36° with an average low of 15°. 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.
