S
M
T
W
T
F
S
29
44°
30°
30
47°
33°
1
46°
32°
2
46°
32°
3
48°
30°
4
46°
29°
5
46°
29°
6
43°
30°
7
46°
29°
8
40°
27°
9
36°
27°
10
37°
25°
11
37°
27°
12
36°
24°
13
38°
20°
14
39°
16°
15
33°
17°
16
31°
19°
17
32°
18°
18
31°
25°
19
36°
24°
20
40°
21°
21
36°
18°
22
32°
18°
23
31°
13°
24
33°
20°
25
32°
15°
26
36°
10°
27
29°
11°
28
25°
11°
29
29°
9°
30
27°
13°
31
28°
22°
1
41°
18°
2
39°
12°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Henniker
Henniker's December 2026 forecast shows daily high temperatures ranging from 25° to 48°, with overnight lows between 9° and 33°. The average high for December is 37° with an average low of 22°. 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 Henniker. See also: January | February | March.
