S
M
T
W
T
F
S
29
47°
38°
30
48°
38°
1
47°
37°
2
48°
36°
3
41°
36°
4
43°
35°
5
46°
36°
6
46°
33°
7
39°
30°
8
37°
29°
9
33°
29°
10
36°
28°
11
38°
34°
12
40°
33°
13
40°
32°
14
33°
22°
15
34°
26°
16
36°
30°
17
40°
31°
18
41°
29°
19
40°
22°
20
36°
22°
21
31°
20°
22
32°
24°
23
31°
29°
24
34°
28°
25
35°
24°
26
34°
17°
27
31°
15°
28
28°
13°
29
28°
15°
30
29°
27°
31
33°
21°
1
37°
18°
2
31°
14°
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 28° to 48°, with overnight lows between 13° and 38°. The average high for December is 37° 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 Windsor. See also: January | February | March.
