S
M
T
W
T
F
S
29
54°
43°
30
62°
42°
1
61°
44°
2
60°
42°
3
60°
38°
4
48°
34°
5
56°
39°
6
57°
39°
7
55°
35°
8
48°
35°
9
47°
32°
10
46°
32°
11
45°
30°
12
45°
29°
13
46°
27°
14
44°
25°
15
44°
29°
16
45°
37°
17
53°
36°
18
49°
37°
19
53°
31°
20
52°
23°
21
47°
22°
22
41°
24°
23
44°
31°
24
45°
24°
25
53°
23°
26
42°
24°
27
43°
23°
28
42°
23°
29
42°
28°
30
45°
35°
31
57°
24°
1
57°
21°
2
41°
17°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Stem
Stem's December 2026 forecast shows daily high temperatures ranging from 41° to 62°, with overnight lows between 17° and 44°. The average high for December is 49° with an average low of 31°. 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 Stem. See also: January | February | March.
