S
M
T
W
T
F
S
26
65°
37°
27
71°
45°
28
75°
52°
29
61°
47°
30
50°
36°
1
45°
35°
2
44°
36°
3
49°
40°
4
54°
41°
5
60°
44°
6
59°
45°
7
57°
43°
8
56°
44°
9
58°
43°
10
56°
42°
11
62°
43°
12
66°
49°
13
62°
43°
14
57°
39°
15
57°
39°
16
58°
41°
17
59°
42°
18
59°
42°
19
69°
48°
20
60°
46°
21
59°
42°
22
60°
42°
23
59°
43°
24
61°
45°
25
62°
48°
26
63°
46°
27
61°
44°
28
63°
50°
29
70°
54°
30
73°
53°
31
67°
49°
1
71°
54°
2
73°
56°
3
74°
57°
4
75°
50°
5
66°
48°
6
66°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Saint-Lazare
Saint-Lazare's May 2026 forecast shows daily high temperatures ranging from 44° to 75°, with overnight lows between 35° and 57°. The average high for May is 62° 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 Saint-Lazare. See also: June | July | August.