S
M
T
W
T
F
S
29
69°
48°
30
67°
50°
1
69°
45°
2
55°
38°
3
54°
35°
4
55°
38°
5
62°
43°
6
56°
37°
7
53°
38°
8
51°
34°
9
51°
35°
10
50°
33°
11
52°
34°
12
53°
35°
13
60°
37°
14
55°
39°
15
56°
44°
16
56°
39°
17
57°
38°
18
60°
36°
19
53°
32°
20
51°
32°
21
51°
33°
22
53°
35°
23
52°
36°
24
49°
33°
25
50°
32°
26
50°
33°
27
51°
32°
28
52°
33°
29
52°
37°
30
51°
34°
31
51°
33°
1
50°
31°
2
49°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Delta
Delta's December 2026 forecast shows daily high temperatures ranging from 49° to 69°, with overnight lows between 31° and 50°. The average high for December is 54° with an average low of 36°. 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 Delta. See also: January | February | March.
