S
M
T
W
T
F
S
29
53°
30°
30
56°
28°
1
52°
24°
2
51°
22°
3
48°
25°
4
45°
20°
5
42°
19°
6
42°
20°
7
46°
23°
8
49°
21°
9
42°
22°
10
44°
23°
11
41°
19°
12
41°
13°
13
40°
14°
14
41°
15°
15
42°
16°
16
40°
14°
17
40°
14°
18
41°
18°
19
41°
14°
20
42°
15°
21
45°
16°
22
45°
18°
23
48°
16°
24
43°
11°
25
40°
12°
26
37°
14°
27
38°
16°
28
40°
18°
29
41°
14°
30
41°
13°
31
42°
12°
1
43°
12°
2
44°
13°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Lakeside
Lakeside's December 2026 forecast shows daily high temperatures ranging from 37° to 56°, with overnight lows between 11° and 30°. The average high for December is 44° with an average low of 18°. 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 Lakeside. See also: January | February | March.
