S
M
T
W
T
F
S
26
37°
32°
27
45°
32°
28
50°
36°
29
60°
41°
30
65°
47°
1
67°
49°
2
63°
51°
3
58°
43°
4
43°
37°
5
46°
37°
6
65°
41°
7
67°
53°
8
69°
52°
9
73°
56°
10
73°
56°
11
77°
58°
12
74°
56°
13
64°
51°
14
68°
52°
15
66°
52°
16
77°
40°
17
66°
43°
18
71°
40°
19
80°
49°
20
84°
52°
21
85°
51°
22
86°
48°
23
85°
47°
24
80°
44°
25
72°
42°
26
71°
43°
27
73°
43°
28
75°
44°
29
74°
41°
30
67°
39°
31
73°
44°
1
78°
46°
2
79°
47°
3
80°
47°
4
81°
48°
5
81°
47°
6
80°
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 66° to 86°, with overnight lows between 39° and 52°. The average high for May is 77° with an average low of 45°. 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.
