S
M
T
W
T
F
S
29
32°
24°
30
37°
25°
1
35°
26°
2
35°
26°
3
36°
25°
4
37°
26°
5
37°
26°
6
40°
25°
7
40°
24°
8
35°
24°
9
34°
23°
10
35°
23°
11
35°
16°
12
31°
12°
13
27°
9°
14
28°
18°
15
33°
12°
16
32°
21°
17
35°
22°
18
34°
21°
19
35°
21°
20
36°
20°
21
35°
21°
22
35°
19°
23
36°
10°
24
33°
6°
25
26°
11°
26
24°
16°
27
28°
18°
28
29°
16°
29
35°
18°
30
33°
19°
31
35°
19°
1
34°
3°
2
34°
1°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Spencer
Spencer's December 2026 forecast shows daily high temperatures ranging from 24° to 40°, with overnight lows between 1° and 26°. The average high for December is 34° with an average low of 18°. 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 Spencer. See also: January | February | March.
