S
M
T
W
T
F
S
30
82°
67°
31
86°
68°
1
89°
72°
2
91°
72°
3
92°
70°
4
88°
69°
5
83°
69°
6
77°
59°
7
78°
56°
8
83°
57°
9
82°
66°
10
78°
52°
11
78°
59°
12
82°
61°
13
79°
67°
14
85°
70°
15
74°
57°
16
75°
55°
17
72°
54°
18
68°
50°
19
67°
50°
20
69°
48°
21
68°
51°
22
68°
56°
23
70°
55°
24
76°
56°
25
77°
56°
26
77°
55°
27
76°
56°
28
77°
57°
29
77°
58°
30
76°
57°
1
77°
53°
2
75°
47°
3
62°
43°
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 62° to 85°, with overnight lows between 43° and 70°. The average high for September is 75° with an average low of 56°. 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.
