S
M
T
W
T
F
S
26
65°
37°
27
73°
38°
28
74°
42°
29
74°
52°
30
53°
38°
1
54°
33°
2
50°
35°
3
56°
32°
4
61°
37°
5
73°
41°
6
51°
42°
7
55°
40°
8
56°
40°
9
65°
40°
10
62°
44°
11
55°
42°
12
57°
37°
13
54°
42°
14
55°
46°
15
68°
51°
16
75°
51°
17
74°
55°
18
67°
48°
19
83°
54°
20
78°
45°
21
62°
38°
22
69°
33°
23
68°
45°
24
59°
52°
25
70°
52°
26
N/A
27
73°
51°
28
67°
52°
29
62°
45°
30
56°
45°
31
68°
49°
1
72°
52°
2
74°
54°
3
78°
57°
4
78°
56°
5
79°
57°
6
74°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Mascouche
Mascouche's May 2026 forecast shows daily high temperatures ranging from 56° to 79°, with overnight lows between 45° and 57°. The average high for May is 71° with an average low of 52°. 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 Mascouche. See also: June | July | August.