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