S
M
T
W
T
F
S
29
47°
38°
30
48°
38°
1
46°
37°
2
47°
37°
3
47°
36°
4
44°
35°
5
46°
35°
6
46°
34°
7
42°
32°
8
36°
32°
9
36°
33°
10
37°
32°
11
39°
33°
12
40°
32°
13
37°
32°
14
34°
26°
15
36°
26°
16
35°
25°
17
36°
29°
18
36°
30°
19
41°
27°
20
37°
24°
21
36°
26°
22
36°
28°
23
33°
24°
24
37°
25°
25
31°
22°
26
31°
10°
27
29°
11°
28
30°
13°
29
32°
11°
30
29°
23°
31
29°
25°
1
35°
16°
2
33°
18°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Toronto
Toronto's December 2026 forecast shows daily high temperatures ranging from 29° to 48°, with overnight lows between 10° and 38°. The average high for December is 38° with an average low of 27°. 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 Toronto. See also: January | February | March.
