S
M
T
W
T
F
S
29
51°
37°
30
52°
32°
1
52°
33°
2
45°
35°
3
45°
32°
4
46°
32°
5
44°
36°
6
48°
36°
7
49°
35°
8
49°
38°
9
48°
38°
10
52°
39°
11
49°
37°
12
48°
36°
13
49°
33°
14
47°
37°
15
49°
37°
16
47°
31°
17
45°
32°
18
Hist. Avg.
44°
37°
19
Hist. Avg.
44°
37°
20
Hist. Avg.
44°
37°
21
Hist. Avg.
44°
37°
22
Hist. Avg.
44°
37°
23
Hist. Avg.
44°
37°
24
Hist. Avg.
44°
37°
25
Hist. Avg.
44°
37°
26
Hist. Avg.
44°
37°
27
Hist. Avg.
44°
37°
28
Hist. Avg.
44°
37°
29
Hist. Avg.
44°
37°
30
Hist. Avg.
44°
37°
31
Hist. Avg.
44°
37°
1
Hist. Avg.
44°
37°
2
Hist. Avg.
43°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Windsor
Windsor's December 2026 forecast shows daily high temperatures ranging from 44° to 52°, with overnight lows between 31° and 39°. The average high for December is 48° with an average low of 35°. 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.