S
M
T
W
T
F
S
29
60°
46°
30
65°
45°
1
64°
46°
2
65°
45°
3
62°
43°
4
52°
40°
5
58°
43°
6
60°
43°
7
60°
41°
8
52°
38°
9
50°
37°
10
49°
35°
11
52°
34°
12
49°
33°
13
49°
32°
14
52°
29°
15
47°
36°
16
51°
41°
17
62°
40°
18
60°
41°
19
59°
34°
20
58°
25°
21
56°
26°
22
45°
29°
23
48°
39°
24
59°
30°
25
62°
28°
26
46°
29°
27
48°
32°
28
47°
33°
29
49°
38°
30
53°
40°
31
61°
29°
1
61°
25°
2
49°
22°
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 45° to 65°, with overnight lows between 22° and 46°. The average high for December is 55° with an average low of 36°. 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.
