S
M
T
W
T
F
S
29
44°
38°
30
45°
36°
1
46°
38°
2
47°
36°
3
44°
31°
4
40°
31°
5
40°
32°
6
41°
32°
7
41°
33°
8
40°
31°
9
41°
31°
10
40°
30°
11
44°
35°
12
45°
36°
13
45°
36°
14
44°
35°
15
45°
36°
16
44°
35°
17
43°
35°
18
44°
36°
19
44°
35°
20
43°
36°
21
45°
35°
22
45°
35°
23
43°
33°
24
44°
34°
25
43°
36°
26
42°
35°
27
44°
37°
28
45°
36°
29
45°
36°
30
44°
37°
31
46°
36°
1
46°
34°
2
45°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Callander
Callander's December 2026 forecast shows daily high temperatures ranging from 40° to 47°, with overnight lows between 30° and 38°. The average high for December is 44° 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 Callander. See also: January | February | March.