S
M
T
W
T
F
S
26
54°
41°
27
58°
40°
28
59°
41°
29
57°
39°
30
62°
41°
1
63°
42°
2
57°
40°
3
57°
40°
4
58°
39°
5
59°
40°
6
61°
49°
7
70°
48°
8
64°
43°
9
63°
46°
10
62°
41°
11
60°
40°
12
59°
39°
13
60°
40°
14
62°
45°
15
62°
46°
16
64°
50°
17
69°
46°
18
68°
42°
19
63°
43°
20
64°
45°
21
69°
54°
22
74°
56°
23
74°
54°
24
75°
54°
25
69°
55°
26
76°
58°
27
77°
52°
28
67°
48°
29
77°
55°
30
78°
51°
31
73°
50°
1
77°
53°
2
79°
53°
3
77°
57°
4
79°
58°
5
77°
58°
6
72°
57°
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 54° to 79°, with overnight lows between 39° and 58°. The average high for May is 67° with an average low of 47°. 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.
