S
M
T
W
T
F
S
29
47°
39°
30
50°
36°
1
51°
34°
2
48°
34°
3
45°
33°
4
46°
31°
5
45°
32°
6
46°
34°
7
45°
33°
8
45°
39°
9
48°
35°
10
49°
37°
11
50°
36°
12
Hist. Avg.
45°
38°
13
Hist. Avg.
44°
37°
14
Hist. Avg.
44°
37°
15
Hist. Avg.
44°
37°
16
Hist. Avg.
44°
37°
17
Hist. Avg.
44°
37°
18
Hist. Avg.
44°
37°
19
Hist. Avg.
44°
37°
20
Hist. Avg.
44°
37°
21
Hist. Avg.
44°
37°
22
Hist. Avg.
44°
37°
23
Hist. Avg.
44°
37°
24
Hist. Avg.
44°
36°
25
Hist. Avg.
44°
36°
26
Hist. Avg.
44°
36°
27
Hist. Avg.
44°
36°
28
Hist. Avg.
44°
36°
29
Hist. Avg.
44°
36°
30
Hist. Avg.
44°
36°
31
Hist. Avg.
44°
36°
1
Hist. Avg.
44°
36°
2
Hist. Avg.
43°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Belmont
Belmont's December 2026 forecast shows daily high temperatures ranging from 45° to 51°, with overnight lows between 31° and 39°. The average high for December is 47° with an average low of 35°. 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 Belmont. See also: January | February | March.
