S
M
T
W
T
F
S
29
69°
46°
30
66°
42°
1
67°
35°
2
53°
32°
3
54°
33°
4
59°
43°
5
61°
37°
6
53°
33°
7
53°
32°
8
51°
30°
9
51°
30°
10
52°
29°
11
55°
31°
12
56°
35°
13
61°
39°
14
55°
33°
15
54°
33°
16
52°
36°
17
55°
32°
18
52°
29°
19
51°
27°
20
51°
28°
21
52°
30°
22
57°
30°
23
50°
29°
24
49°
28°
25
49°
27°
26
50°
28°
27
51°
28°
28
51°
29°
29
52°
29°
30
50°
31°
31
51°
27°
1
51°
27°
2
50°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Winona
Winona's December 2026 forecast shows daily high temperatures ranging from 49° to 69°, with overnight lows between 27° and 46°. The average high for December is 54° with an average low of 32°. 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 Winona. See also: January | February | March.
