S
M
T
W
T
F
S
29
33°
20°
30
36°
24°
1
34°
15°
2
36°
13°
3
26°
22°
4
31°
24°
5
35°
24°
6
35°
23°
7
36°
22°
8
36°
21°
9
32°
16°
10
30°
12°
11
26°
13°
12
27°
6°
13
24°
7°
14
21°
17°
15
25°
17°
16
28°
15°
17
29°
14°
18
30°
19°
19
31°
21°
20
33°
15°
21
33°
11°
22
28°
16°
23
31°
16°
24
31°
6°
25
30°
1°
26
20°
1°
27
17°
-4°
28
16°
-1°
29
14°
-6°
30
15°
-4°
31
11°
-1°
1
14°
10°
2
17°
6°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Danbury
Danbury's December 2026 forecast shows daily high temperatures ranging from 11° to 36°, with overnight lows between -6° and 24°. The average high for December is 27° with an average low of 12°. 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 Danbury. See also: January | February | March.
