S
M
T
W
T
F
S
29
42°
25°
30
46°
31°
1
49°
36°
2
47°
33°
3
51°
33°
4
52°
35°
5
50°
27°
6
41°
24°
7
40°
32°
8
49°
35°
9
48°
34°
10
46°
35°
11
49°
35°
12
48°
32°
13
42°
27°
14
39°
25°
15
37°
24°
16
36°
23°
17
37°
27°
18
45°
32°
19
50°
33°
20
47°
34°
21
50°
29°
22
37°
27°
23
41°
31°
24
49°
33°
25
36°
19°
26
37°
19°
27
37°
24°
28
36°
30°
29
50°
27°
30
47°
23°
31
38°
20°
1
38°
19°
2
36°
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 36° to 52°, with overnight lows between 17° and 36°. The average high for December is 44° 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.
