S
M
T
W
T
F
S
29
38°
27°
30
39°
24°
1
37°
26°
2
36°
26°
3
40°
22°
4
36°
26°
5
34°
31°
6
38°
33°
7
41°
37°
8
49°
31°
9
50°
30°
10
42°
29°
11
38°
28°
12
37°
25°
13
36°
24°
14
34°
23°
15
32°
22°
16
31°
23°
17
32°
21°
18
34°
22°
19
34°
24°
20
36°
30°
21
39°
26°
22
40°
20°
23
37°
26°
24
35°
30°
25
41°
23°
26
40°
19°
27
37°
21°
28
31°
17°
29
34°
16°
30
28°
9°
31
34°
13°
1
27°
17°
2
32°
17°
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 27° to 50°, with overnight lows between 9° and 37°. The average high for December is 37° 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 Syracuse. See also: January | February | March.
