S
M
T
W
T
F
S
26
54°
39°
27
47°
36°
28
55°
35°
29
60°
37°
30
62°
40°
1
66°
42°
2
71°
44°
3
75°
49°
4
74°
51°
5
61°
49°
6
62°
40°
7
73°
48°
8
75°
51°
9
72°
55°
10
77°
49°
11
87°
54°
12
89°
59°
13
88°
61°
14
70°
49°
15
75°
49°
16
67°
49°
17
53°
43°
18
52°
40°
19
65°
38°
20
69°
52°
21
67°
47°
22
71°
53°
23
80°
63°
24
82°
64°
25
84°
65°
26
78°
52°
27
64°
52°
28
71°
55°
29
80°
60°
30
83°
64°
31
79°
61°
1
83°
64°
2
75°
52°
3
77°
54°
4
81°
53°
5
81°
59°
6
71°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Syracuse
Syracuse's May 2026 forecast shows daily high temperatures ranging from 64° to 84°, with overnight lows between 47° and 65°. The average high for May is 76° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Syracuse. See also: June | July | August.