S
M
T
W
T
F
S
26
70°
32°
27
59°
43°
28
55°
40°
29
67°
36°
30
77°
39°
1
76°
43°
2
76°
45°
3
81°
47°
4
76°
47°
5
66°
47°
6
58°
47°
7
64°
45°
8
64°
42°
9
69°
40°
10
64°
42°
11
72°
42°
12
81°
53°
13
64°
49°
14
61°
43°
15
52°
41°
16
56°
37°
17
62°
34°
18
67°
42°
19
63°
46°
20
68°
45°
21
76°
41°
22
79°
43°
23
69°
45°
24
69°
51°
25
57°
45°
26
63°
42°
27
71°
47°
28
76°
48°
29
64°
45°
30
65°
41°
31
66°
45°
1
71°
47°
2
76°
49°
3
74°
48°
4
78°
47°
5
81°
61°
6
68°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Fair Harbor
Fair Harbor's May 2026 forecast shows daily high temperatures ranging from 57° to 81°, with overnight lows between 41° and 61°. The average high for May is 70° with an average low of 47°. 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 Fair Harbor. See also: June | July | August.