S
M
T
W
T
F
S
26
65°
38°
27
67°
44°
28
67°
45°
29
71°
46°
30
75°
44°
1
76°
43°
2
82°
57°
3
85°
57°
4
87°
60°
5
84°
56°
6
84°
61°
7
80°
55°
8
73°
50°
9
75°
51°
10
77°
47°
11
76°
47°
12
84°
47°
13
71°
49°
14
65°
46°
15
61°
43°
16
62°
44°
17
71°
44°
18
70°
48°
19
71°
52°
20
77°
51°
21
74°
48°
22
81°
47°
23
83°
54°
24
83°
58°
25
80°
49°
26
69°
50°
27
82°
58°
28
93°
63°
29
71°
53°
30
70°
49°
31
77°
51°
1
78°
50°
2
79°
54°
3
80°
53°
4
79°
49°
5
74°
48°
6
70°
47°
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 70° to 80°, with overnight lows between 47° and 54°. The average high for May is 77° 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.
