S
M
T
W
T
F
S
29
43°
35°
30
43°
36°
1
48°
36°
2
46°
35°
3
49°
34°
4
35°
28°
5
47°
24°
6
46°
22°
7
34°
18°
8
33°
24°
9
36°
22°
10
36°
21°
11
35°
21°
12
35°
22°
13
38°
25°
14
36°
26°
15
38°
30°
16
40°
26°
17
43°
23°
18
37°
22°
19
34°
21°
20
35°
21°
21
35°
20°
22
33°
25°
23
38°
26°
24
41°
28°
25
41°
28°
26
38°
25°
27
36°
24°
28
34°
19°
29
32°
14°
30
31°
14°
31
31°
15°
1
33°
13°
2
34°
17°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Sylvania
Sylvania's December 2026 forecast shows daily high temperatures ranging from 31° to 49°, with overnight lows between 13° and 36°. The average high for December is 38° with an average low of 24°. 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 Sylvania. See also: January | February | March.
