S
M
T
W
T
F
S
26
69°
43°
27
60°
44°
28
52°
38°
29
57°
42°
30
53°
38°
1
53°
36°
2
66°
34°
3
71°
48°
4
66°
42°
5
53°
35°
6
52°
36°
7
62°
32°
8
75°
37°
9
63°
42°
10
66°
37°
11
73°
33°
12
75°
58°
13
75°
46°
14
80°
50°
15
89°
52°
16
82°
51°
17
82°
60°
18
64°
51°
19
52°
42°
20
58°
37°
21
64°
47°
22
61°
48°
23
71°
52°
24
84°
50°
25
88°
61°
26
88°
66°
27
88°
63°
28
89°
64°
29
84°
62°
30
78°
64°
31
70°
60°
1
84°
58°
2
83°
59°
3
84°
56°
4
77°
63°
5
84°
62°
6
87°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Fairmont
Fairmont's May 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May is ° with an average low of °. 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 Fairmont. See also: June | July | August.