S
M
T
W
T
F
S
30
48°
41°
1
50°
41°
2
60°
40°
3
63°
41°
4
53°
37°
5
50°
37°
6
48°
41°
7
48°
41°
8
53°
41°
9
51°
41°
10
52°
42°
11
53°
40°
12
50°
39°
13
50°
37°
14
46°
37°
15
52°
38°
16
57°
41°
17
65°
51°
18
60°
52°
19
64°
53°
20
63°
57°
21
64°
57°
22
64°
58°
23
64°
54°
24
65°
54°
25
61°
50°
26
58°
46°
27
52°
42°
28
55°
38°
29
60°
39°
30
47°
37°
31
54°
42°
1
58°
47°
2
62°
52°
3
61°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Alamo
Alamo's December 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for December is ° with an average low of °. 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 Alamo. See also: January | February | March.
