S
M
T
W
T
F
S
29
66°
46°
30
63°
47°
1
65°
41°
2
51°
35°
3
51°
32°
4
55°
39°
5
59°
41°
6
50°
35°
7
49°
33°
8
48°
31°
9
48°
32°
10
46°
30°
11
48°
32°
12
52°
36°
13
54°
33°
14
50°
34°
15
50°
39°
16
49°
40°
17
50°
34°
18
52°
30°
19
48°
29°
20
47°
28°
21
46°
29°
22
48°
32°
23
48°
32°
24
46°
29°
25
46°
28°
26
45°
29°
27
47°
28°
28
47°
29°
29
48°
32°
30
47°
29°
31
46°
28°
1
45°
26°
2
44°
27°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Winchester
Winchester's December 2026 forecast shows daily high temperatures ranging from 44° to 66°, with overnight lows between 26° and 47°. The average high for December is 50° with an average low of 33°. 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 Winchester. See also: January | February | March.
