S
M
T
W
T
F
S
29
37°
27°
30
38°
26°
1
37°
26°
2
38°
20°
3
37°
20°
4
34°
28°
5
37°
31°
6
40°
36°
7
47°
29°
8
49°
27°
9
47°
23°
10
35°
22°
11
34°
21°
12
34°
22°
13
35°
25°
14
36°
23°
15
32°
20°
16
33°
22°
17
33°
25°
18
34°
26°
19
35°
29°
20
41°
28°
21
46°
21°
22
43°
23°
23
35°
28°
24
41°
27°
25
43°
25°
26
39°
25°
27
34°
15°
28
35°
14°
29
27°
10°
30
30°
8°
31
29°
10°
1
22°
13°
2
28°
18°
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 22° to 49°, with overnight lows between 8° and 36°. The average high for December is 36° with an average low of 23°. 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.
