S
M
T
W
T
F
S
29
61°
40°
30
60°
39°
1
61°
39°
2
62°
40°
3
66°
38°
4
59°
40°
5
63°
51°
6
70°
52°
7
71°
48°
8
72°
39°
9
64°
40°
10
63°
41°
11
65°
48°
12
66°
49°
13
67°
39°
14
69°
37°
15
57°
38°
16
58°
40°
17
62°
45°
18
62°
49°
19
65°
51°
20
69°
52°
21
72°
51°
22
70°
49°
23
70°
42°
24
69°
43°
25
66°
44°
26
67°
47°
27
66°
37°
28
67°
41°
29
57°
36°
30
68°
34°
31
55°
33°
1
53°
39°
2
60°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Winthrop Square
Winthrop Square's December 2026 forecast shows daily high temperatures ranging from 53° to 72°, with overnight lows between 33° and 52°. The average high for December is 64° with an average low of 42°. 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 Winthrop Square. See also: January | February | March.
