S
M
T
W
T
F
S
29
44°
32°
30
46°
34°
1
47°
35°
2
45°
33°
3
47°
31°
4
42°
26°
5
45°
30°
6
45°
31°
7
43°
29°
8
36°
25°
9
35°
26°
10
34°
25°
11
34°
29°
12
36°
26°
13
35°
27°
14
32°
21°
15
35°
21°
16
34°
23°
17
36°
25°
18
35°
26°
19
38°
25°
20
37°
16°
21
35°
18°
22
32°
20°
23
29°
20°
24
33°
21°
25
31°
18°
26
31°
14°
27
29°
10°
28
26°
9°
29
27°
6°
30
27°
17°
31
30°
20°
1
40°
14°
2
32°
13°
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 26° to 47°, with overnight lows between 6° and 35°. The average high for December is 36° with an average low of 23°. 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.
