S
M
T
W
T
F
S
29
47°
36°
30
44°
36°
1
55°
31°
2
47°
35°
3
48°
27°
4
58°
25°
5
53°
25°
6
41°
24°
7
42°
28°
8
43°
24°
9
43°
22°
10
40°
21°
11
37°
23°
12
37°
24°
13
39°
23°
14
38°
24°
15
39°
25°
16
40°
25°
17
40°
24°
18
41°
36°
19
44°
32°
20
47°
29°
21
41°
25°
22
39°
23°
23
39°
23°
24
38°
24°
25
38°
22°
26
37°
26°
27
36°
24°
28
38°
23°
29
36°
21°
30
38°
21°
31
41°
16°
1
Hist. Avg.
41°
24°
2
Hist. Avg.
41°
24°
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 36° to 58°, with overnight lows between 16° and 36°. The average high for December is 42° with an average low of 26°. 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.
