S
M
T
W
T
F
S
29
50°
33°
30
52°
34°
1
48°
30°
2
45°
29°
3
47°
33°
4
54°
38°
5
52°
36°
6
53°
32°
7
42°
33°
8
44°
23°
9
39°
22°
10
37°
22°
11
38°
23°
12
38°
25°
13
39°
22°
14
40°
26°
15
46°
34°
16
51°
35°
17
51°
32°
18
42°
30°
19
46°
32°
20
43°
28°
21
41°
22°
22
37°
25°
23
39°
25°
24
42°
20°
25
35°
16°
26
33°
13°
27
32°
28°
28
41°
17°
29
42°
24°
30
45°
15°
31
46°
14°
1
30°
17°
2
33°
16°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Windsor
Windsor's December 2026 forecast shows daily high temperatures ranging from 30° to 54°, with overnight lows between 13° and 38°. The average high for December is 43° with an average low of 26°. 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 Windsor. See also: January | February | March.
