S
M
T
W
T
F
S
29
63°
28°
30
63°
27°
1
56°
26°
2
56°
30°
3
55°
34°
4
54°
47°
5
69°
36°
6
73°
28°
7
61°
27°
8
57°
33°
9
58°
33°
10
53°
34°
11
55°
34°
12
55°
29°
13
54°
25°
14
56°
27°
15
52°
31°
16
53°
28°
17
54°
28°
18
51°
29°
19
52°
36°
20
55°
38°
21
59°
35°
22
62°
32°
23
59°
27°
24
54°
24°
25
52°
25°
26
51°
28°
27
53°
29°
28
51°
29°
29
52°
25°
30
53°
26°
31
54°
25°
1
53°
23°
2
54°
25°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Stephenville
Stephenville's December 2026 forecast shows daily high temperatures ranging from 51° to 73°, with overnight lows between 23° and 47°. The average high for December is 56° with an average low of 30°. 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 Stephenville. See also: January | February | March.
