S
M
T
W
T
F
S
26
69°
47°
27
70°
45°
28
68°
43°
29
61°
38°
30
60°
39°
1
61°
39°
2
62°
38°
3
62°
37°
4
63°
39°
5
63°
41°
6
64°
39°
7
65°
40°
8
69°
44°
9
73°
47°
10
75°
50°
11
76°
50°
12
76°
49°
13
75°
50°
14
76°
47°
15
71°
45°
16
67°
43°
17
67°
43°
18
69°
45°
19
75°
49°
20
72°
50°
21
70°
49°
22
70°
52°
23
69°
48°
24
68°
45°
25
68°
46°
26
69°
45°
27
75°
54°
28
74°
54°
29
72°
48°
30
72°
47°
31
76°
52°
1
75°
48°
2
71°
48°
3
72°
49°
4
72°
49°
5
76°
53°
6
79°
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 60° to 79°, with overnight lows between 37° and 54°. The average high for May is 70° 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.
