S
M
T
W
T
F
S
26
47°
33°
27
53°
32°
28
55°
36°
29
57°
35°
30
51°
37°
1
52°
35°
2
50°
38°
3
53°
37°
4
52°
33°
5
51°
34°
6
53°
36°
7
56°
37°
8
53°
37°
9
53°
38°
10
58°
36°
11
55°
34°
12
54°
40°
13
58°
42°
14
59°
43°
15
61°
43°
16
59°
41°
17
58°
42°
18
64°
44°
19
65°
45°
20
64°
45°
21
60°
44°
22
58°
44°
23
62°
45°
24
62°
45°
25
61°
40°
26
58°
38°
27
59°
39°
28
59°
41°
29
60°
43°
30
59°
41°
31
61°
46°
1
68°
42°
2
69°
48°
3
66°
47°
4
65°
48°
5
64°
47°
6
67°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Moncton
Moncton's May 2026 forecast shows daily high temperatures ranging from 47° to 69°, with overnight lows between 32° and 50°. The average high for May is 58° with an average low of 41°. 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 Moncton. See also: June | July | August.
