S
M
T
W
T
F
S
26
67°
29°
27
73°
31°
28
67°
33°
29
64°
42°
30
50°
43°
1
57°
32°
2
48°
32°
3
51°
30°
4
70°
29°
5
82°
37°
6
62°
46°
7
59°
33°
8
55°
28°
9
53°
27°
10
65°
41°
11
58°
34°
12
56°
29°
13
47°
44°
14
56°
48°
15
60°
44°
16
74°
52°
17
76°
47°
18
69°
52°
19
84°
59°
20
75°
46°
21
67°
43°
22
66°
48°
23
67°
45°
24
65°
44°
25
64°
47°
26
68°
51°
27
65°
40°
28
64°
41°
29
65°
46°
30
64°
47°
31
66°
47°
1
66°
45°
2
65°
42°
3
65°
41°
4
66°
41°
5
67°
49°
6
68°
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 47° to 84°, with overnight lows between 40° and 59°. The average high for May is 66° 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.
