S
M
T
W
T
F
S
26
63°
46°
27
81°
52°
28
82°
34°
29
60°
45°
30
64°
43°
1
48°
37°
2
73°
32°
3
61°
34°
4
72°
58°
5
65°
44°
6
57°
39°
7
55°
40°
8
59°
45°
9
63°
46°
10
67°
48°
11
60°
43°
12
64°
47°
13
65°
51°
14
65°
46°
15
67°
50°
16
71°
52°
17
75°
50°
18
72°
55°
19
73°
54°
20
76°
49°
21
72°
50°
22
67°
46°
23
65°
46°
24
67°
48°
25
67°
50°
26
68°
48°
27
68°
48°
28
69°
49°
29
69°
49°
30
70°
53°
31
76°
57°
1
71°
53°
2
72°
52°
3
74°
57°
4
75°
57°
5
77°
60°
6
80°
61°
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 55° to 80°, with overnight lows between 39° and 61°. The average high for May is 69° with an average low of 50°. 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.
