S
M
T
W
T
F
S
29
66°
41°
30
74°
38°
1
61°
38°
2
61°
41°
3
62°
46°
4
62°
54°
5
73°
47°
6
75°
37°
7
66°
37°
8
66°
43°
9
61°
42°
10
65°
42°
11
64°
43°
12
60°
47°
13
66°
35°
14
68°
37°
15
61°
38°
16
60°
37°
17
59°
36°
18
59°
38°
19
60°
41°
20
61°
40°
21
63°
42°
22
71°
41°
23
65°
37°
24
62°
34°
25
60°
35°
26
57°
35°
27
58°
36°
28
58°
35°
29
59°
33°
30
60°
33°
31
59°
34°
1
58°
34°
2
59°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Del Rio
Del Rio's December 2026 forecast shows daily high temperatures ranging from 57° to 75°, with overnight lows between 33° and 54°. The average high for December is 63° with an average low of 39°. 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 Del Rio. See also: January | February | March.
