S
M
T
W
T
F
S
29
58°
45°
30
66°
46°
1
63°
40°
2
63°
50°
3
69°
48°
4
65°
43°
5
57°
45°
6
56°
48°
7
56°
45°
8
58°
48°
9
66°
49°
10
68°
45°
11
56°
39°
12
55°
42°
13
61°
46°
14
62°
48°
15
64°
46°
16
62°
47°
17
64°
48°
18
67°
48°
19
66°
46°
20
63°
39°
21
55°
42°
22
62°
48°
23
66°
43°
24
56°
40°
25
51°
32°
26
51°
36°
27
53°
36°
28
54°
33°
29
54°
36°
30
55°
37°
31
56°
34°
1
55°
39°
2
57°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Sam Rayburn
Sam Rayburn's December 2026 forecast shows daily high temperatures ranging from 51° to 69°, with overnight lows between 32° and 50°. The average high for December is 60° with an average low of 43°. 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 Sam Rayburn. See also: January | February | March.
