S
M
T
W
T
F
S
30
83°
56°
31
84°
54°
1
88°
50°
2
84°
50°
3
80°
51°
4
82°
52°
5
83°
56°
6
88°
58°
7
90°
60°
8
91°
51°
9
82°
51°
10
82°
57°
11
81°
59°
12
89°
50°
13
91°
50°
14
80°
56°
15
87°
58°
16
90°
52°
17
88°
46°
18
79°
47°
19
78°
49°
20
83°
54°
21
86°
54°
22
86°
53°
23
85°
54°
24
85°
53°
25
84°
52°
26
84°
52°
27
83°
51°
28
85°
52°
29
84°
51°
30
83°
51°
1
82°
39°
2
83°
38°
3
74°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Syracuse
Syracuse's September 2026 forecast shows daily high temperatures ranging from 74° to 91°, with overnight lows between 38° and 60°. The average high for September is 84° with an average low of 52°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Syracuse. See also: October | November | December.
