S
M
T
W
T
F
S
30
75°
64°
31
73°
67°
1
81°
67°
2
82°
70°
3
79°
63°
4
76°
59°
5
76°
56°
6
77°
57°
7
79°
61°
8
79°
62°
9
77°
61°
10
75°
59°
11
75°
54°
12
74°
55°
13
76°
58°
14
69°
53°
15
69°
55°
16
74°
58°
17
73°
53°
18
66°
47°
19
66°
49°
20
74°
57°
21
76°
58°
22
76°
58°
23
75°
56°
24
74°
52°
25
73°
54°
26
73°
54°
27
74°
55°
28
74°
54°
29
72°
48°
30
63°
44°
1
62°
46°
2
70°
53°
3
72°
52°
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 82°, with overnight lows between 44° and 70°. The average high for September is 74° 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.
