S
M
T
W
T
F
S
26
81°
58°
27
80°
64°
28
73°
58°
29
67°
53°
30
64°
46°
1
63°
48°
2
64°
45°
3
71°
40°
4
81°
61°
5
68°
46°
6
62°
46°
7
66°
44°
8
74°
48°
9
78°
56°
10
72°
59°
11
74°
51°
12
81°
52°
13
77°
56°
14
72°
51°
15
82°
57°
16
84°
71°
17
86°
70°
18
82°
65°
19
82°
64°
20
67°
58°
21
74°
62°
22
71°
67°
23
79°
64°
24
80°
66°
25
81°
66°
26
82°
67°
27
81°
66°
28
82°
68°
29
82°
66°
30
84°
63°
31
86°
65°
1
84°
61°
2
87°
64°
3
82°
62°
4
79°
58°
5
80°
62°
6
85°
66°
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 67° to 87°, with overnight lows between 58° and 68°. The average high for May is 80° with an average low of 64°. 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.
