S
M
T
W
T
F
S
29
47°
33°
30
44°
33°
1
43°
34°
2
43°
43°
3
52°
40°
4
56°
35°
5
47°
36°
6
42°
36°
7
47°
38°
8
50°
40°
9
48°
32°
10
50°
40°
11
50°
43°
12
Hist. Avg.
45°
35°
13
Hist. Avg.
45°
34°
14
Hist. Avg.
45°
34°
15
Hist. Avg.
44°
34°
16
Hist. Avg.
44°
34°
17
Hist. Avg.
44°
34°
18
Hist. Avg.
44°
33°
19
Hist. Avg.
43°
33°
20
Hist. Avg.
43°
33°
21
Hist. Avg.
43°
32°
22
Hist. Avg.
42°
32°
23
Hist. Avg.
42°
32°
24
Hist. Avg.
42°
32°
25
Hist. Avg.
42°
32°
26
Hist. Avg.
42°
31°
27
Hist. Avg.
42°
31°
28
Hist. Avg.
41°
31°
29
Hist. Avg.
41°
30°
30
Hist. Avg.
41°
30°
31
Hist. Avg.
41°
30°
1
Hist. Avg.
41°
30°
2
Hist. Avg.
40°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Chelsea
Chelsea's December 2026 forecast shows daily high temperatures ranging from 42° to 56°, with overnight lows between 32° and 43°. The average high for December is 48° with an average low of 37°. 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 Chelsea. See also: January | February | March.
