S
M
T
W
T
F
S
26
63°
36°
27
73°
38°
28
68°
55°
29
62°
48°
30
53°
39°
1
57°
35°
2
49°
36°
3
57°
36°
4
74°
47°
5
74°
48°
6
49°
44°
7
57°
37°
8
56°
38°
9
63°
37°
10
59°
40°
11
55°
34°
12
60°
33°
13
69°
45°
14
51°
44°
15
62°
45°
16
79°
59°
17
78°
55°
18
90°
72°
19
90°
70°
20
71°
45°
21
60°
44°
22
63°
48°
23
71°
53°
24
68°
52°
25
73°
54°
26
72°
58°
27
72°
57°
28
71°
51°
29
67°
55°
30
68°
55°
31
70°
51°
1
67°
49°
2
67°
48°
3
68°
48°
4
68°
49°
5
70°
57°
6
71°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Onondaga
Onondaga's May 2026 forecast shows daily high temperatures ranging from 60° to 90°, with overnight lows between 44° and 72°. The average high for May is 71° with an average low of 54°. 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 Onondaga. See also: June | July | August.
