S
M
T
W
T
F
S
29
49°
39°
30
47°
38°
1
47°
38°
2
48°
40°
3
49°
39°
4
48°
38°
5
48°
39°
6
47°
38°
7
48°
39°
8
47°
39°
9
51°
35°
10
47°
38°
11
41°
30°
12
41°
34°
13
44°
38°
14
45°
39°
15
47°
41°
16
50°
36°
17
49°
33°
18
48°
30°
19
43°
29°
20
42°
29°
21
41°
30°
22
43°
25°
23
41°
28°
24
39°
35°
25
44°
37°
26
45°
34°
27
45°
30°
28
46°
29°
29
43°
28°
30
41°
27°
31
40°
27°
1
41°
28°
2
40°
28°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Lake Cassidy
Lake Cassidy's December 2026 forecast shows daily high temperatures ranging from 39° to 51°, with overnight lows between 25° and 41°. The average high for December is 45° with an average low of 34°. 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 Lake Cassidy. See also: January | February | March.
