S
M
T
W
T
F
S
26
68°
50°
27
77°
45°
28
73°
59°
29
66°
48°
30
59°
41°
1
54°
37°
2
52°
34°
3
63°
32°
4
75°
43°
5
68°
50°
6
59°
43°
7
61°
39°
8
70°
41°
9
75°
54°
10
70°
52°
11
72°
41°
12
75°
43°
13
70°
48°
14
64°
43°
15
68°
39°
16
73°
50°
17
84°
63°
18
88°
61°
19
88°
66°
20
70°
54°
21
70°
54°
22
66°
55°
23
73°
63°
24
72°
59°
25
79°
59°
26
77°
59°
27
75°
63°
28
82°
57°
29
81°
50°
30
79°
50°
31
77°
54°
1
77°
52°
2
76°
51°
3
76°
54°
4
81°
58°
5
83°
64°
6
81°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mason
Mason's May 2026 forecast shows daily high temperatures ranging from 76° to 83°, with overnight lows between 50° and 64°. The average high for May is 79° with an average low of 56°. 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 Mason. See also: June | July | August.
