S
M
T
W
T
F
S
26
63°
50°
27
59°
50°
28
60°
50°
29
58°
50°
30
60°
50°
1
61°
53°
2
66°
54°
3
67°
55°
4
74°
56°
5
61°
54°
6
58°
53°
7
61°
53°
8
58°
53°
9
65°
53°
10
62°
53°
11
62°
53°
12
64°
56°
13
62°
54°
14
60°
53°
15
54°
50°
16
55°
47°
17
62°
49°
18
62°
51°
19
61°
53°
20
63°
51°
21
65°
54°
22
67°
56°
23
63°
56°
24
62°
53°
25
61°
53°
26
60°
53°
27
68°
54°
28
69°
57°
29
N/A
30
63°
52°
31
66°
53°
1
71°
58°
2
77°
58°
3
67°
53°
4
67°
52°
5
61°
51°
6
62°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Montague Harbour
Montague Harbour's May 2026 forecast shows daily high temperatures ranging from 61° to 77°, with overnight lows between 50° and 58°. The average high for May is 67° 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 Montague Harbour. See also: June | July | August.
