S
M
T
W
T
F
S
26
55°
41°
27
56°
37°
28
64°
39°
29
56°
36°
30
57°
41°
1
64°
42°
2
59°
39°
3
62°
42°
4
67°
48°
5
69°
47°
6
70°
49°
7
71°
50°
8
72°
51°
9
72°
49°
10
68°
46°
11
61°
43°
12
63°
44°
13
65°
48°
14
63°
45°
15
67°
45°
16
69°
50°
17
72°
51°
18
69°
41°
19
68°
41°
20
65°
42°
21
64°
41°
22
65°
43°
23
66°
44°
24
65°
51°
25
68°
50°
26
72°
48°
27
71°
46°
28
69°
56°
29
69°
54°
30
80°
47°
31
71°
54°
1
71°
50°
2
73°
52°
3
73°
56°
4
78°
49°
5
79°
48°
6
71°
49°
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 36° and 56°. The average high for May is 67° with an average low of 46°. 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.
