S
M
T
W
T
F
S
30
86°
65°
31
86°
65°
1
87°
64°
2
86°
68°
3
86°
65°
4
89°
64°
5
89°
67°
6
87°
67°
7
85°
65°
8
89°
65°
9
88°
66°
10
89°
65°
11
87°
65°
12
86°
64°
13
87°
64°
14
86°
63°
15
87°
64°
16
88°
66°
17
Hist. Avg.
84°
62°
18
Hist. Avg.
84°
62°
19
Hist. Avg.
83°
61°
20
Hist. Avg.
83°
61°
21
Hist. Avg.
83°
60°
22
Hist. Avg.
82°
60°
23
Hist. Avg.
82°
60°
24
Hist. Avg.
82°
59°
25
Hist. Avg.
81°
59°
26
Hist. Avg.
81°
58°
27
Hist. Avg.
81°
58°
28
Hist. Avg.
80°
58°
29
Hist. Avg.
80°
57°
30
Hist. Avg.
80°
57°
1
Hist. Avg.
79°
56°
2
Hist. Avg.
79°
56°
3
Hist. Avg.
78°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Syracuse
Syracuse's September 2026 forecast shows daily high temperatures ranging from 85° to 89°, with overnight lows between 63° and 68°. The average high for September is 87° with an average low of 65°. 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.
