S
M
T
W
T
F
S
26
55°
43°
27
58°
44°
28
52°
43°
29
50°
45°
30
56°
46°
1
65°
47°
2
55°
48°
3
55°
44°
4
73°
46°
5
79°
50°
6
70°
57°
7
65°
50°
8
62°
47°
9
55°
42°
10
75°
51°
11
62°
49°
12
64°
48°
13
67°
53°
14
63°
50°
15
55°
49°
16
76°
61°
17
84°
57°
18
66°
56°
19
84°
65°
20
77°
52°
21
65°
51°
22
69°
55°
23
68°
53°
24
68°
52°
25
69°
53°
26
71°
51°
27
67°
52°
28
66°
50°
29
66°
50°
30
67°
56°
31
68°
56°
1
68°
54°
2
69°
54°
3
68°
52°
4
68°
50°
5
69°
56°
6
70°
56°
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 84°, with overnight lows between 49° and 65°. The average high for May is 69° with an average low of 54°. 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.
