S
M
T
W
T
F
S
29
49°
36°
30
53°
38°
1
54°
37°
2
54°
37°
3
56°
36°
4
48°
34°
5
53°
30°
6
51°
35°
7
53°
33°
8
45°
30°
9
44°
26°
10
41°
25°
11
40°
31°
12
42°
31°
13
44°
29°
14
40°
24°
15
43°
26°
16
42°
29°
17
44°
30°
18
42°
32°
19
51°
29°
20
48°
19°
21
41°
21°
22
37°
23°
23
35°
27°
24
40°
26°
25
49°
25°
26
49°
20°
27
39°
20°
28
36°
21°
29
38°
20°
30
40°
30°
31
47°
26°
1
52°
20°
2
45°
17°
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 35° to 56°, with overnight lows between 17° and 38°. The average high for December is 45° with an average low of 28°. 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.
