S
M
T
W
T
F
S
26
66°
47°
27
67°
47°
28
62°
46°
29
56°
44°
30
55°
38°
1
49°
32°
2
51°
28°
3
62°
35°
4
75°
47°
5
57°
46°
6
55°
39°
7
58°
35°
8
64°
37°
9
70°
43°
10
62°
39°
11
63°
38°
12
64°
38°
13
60°
42°
14
67°
42°
15
68°
40°
16
80°
55°
17
85°
59°
18
83°
66°
19
83°
61°
20
67°
53°
21
66°
47°
22
72°
49°
23
60°
55°
24
68°
50°
25
78°
54°
26
82°
57°
27
81°
56°
28
77°
52°
29
76°
51°
30
74°
51°
31
75°
52°
1
74°
53°
2
73°
52°
3
75°
56°
4
75°
56°
5
77°
57°
6
76°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Quincy
Quincy's May 2026 forecast shows daily high temperatures ranging from 68° to 82°, with overnight lows between 50° and 57°. The average high for May is 76° 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 Quincy. See also: June | July | August.
