S
M
T
W
T
F
S
29
46°
36°
30
49°
36°
1
48°
37°
2
47°
36°
3
48°
34°
4
44°
31°
5
45°
34°
6
46°
34°
7
45°
31°
8
37°
30°
9
38°
32°
10
37°
32°
11
37°
31°
12
38°
30°
13
38°
31°
14
36°
24°
15
37°
24°
16
35°
25°
17
37°
28°
18
38°
30°
19
41°
29°
20
40°
22°
21
37°
24°
22
36°
26°
23
32°
22°
24
36°
24°
25
30°
21°
26
31°
18°
27
31°
13°
28
28°
11°
29
29°
8°
30
29°
20°
31
30°
23°
1
39°
17°
2
33°
16°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Syracuse
Syracuse's December 2026 forecast shows daily high temperatures ranging from 28° to 49°, with overnight lows between 8° and 37°. The average high for December is 38° with an average low of 26°. 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 Syracuse. See also: January | February | March.
