S
M
T
W
T
F
S
26
68°
42°
27
70°
46°
28
66°
49°
29
72°
52°
30
73°
51°
1
75°
48°
2
74°
54°
3
65°
55°
4
65°
54°
5
60°
52°
6
57°
50°
7
60°
46°
8
66°
45°
9
73°
48°
10
61°
51°
11
57°
45°
12
59°
40°
13
56°
47°
14
52°
43°
15
52°
39°
16
59°
43°
17
57°
50°
18
58°
47°
19
61°
49°
20
N/A
21
74°
51°
22
80°
55°
23
85°
59°
24
84°
59°
25
84°
58°
26
82°
57°
27
76°
53°
28
75°
54°
29
78°
55°
30
71°
50°
31
66°
49°
1
68°
50°
2
63°
48°
3
62°
48°
4
63°
51°
5
63°
50°
6
64°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Saint-Quentin
Saint-Quentin's May 2026 forecast shows daily high temperatures ranging from 62° to 85°, with overnight lows between 48° and 59°. The average high for May is 73° with an average low of 53°. 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 Saint-Quentin. See also: June | July | August.