S
M
T
W
T
F
S
26
63°
46°
27
82°
41°
28
77°
55°
29
68°
53°
30
57°
41°
1
60°
36°
2
57°
34°
3
62°
48°
4
73°
55°
5
75°
57°
6
66°
46°
7
58°
39°
8
57°
41°
9
67°
47°
10
69°
46°
11
71°
52°
12
72°
52°
13
70°
50°
14
69°
49°
15
71°
53°
16
69°
52°
17
72°
54°
18
76°
55°
19
77°
56°
20
75°
56°
21
78°
57°
22
78°
57°
23
77°
56°
24
74°
54°
25
72°
55°
26
78°
58°
27
79°
57°
28
75°
56°
29
76°
57°
30
73°
55°
31
76°
56°
1
73°
55°
2
75°
58°
3
78°
53°
4
73°
51°
5
73°
51°
6
74°
52°
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 57° to 79°, with overnight lows between 34° and 58°. The average high for May is 72° with an average low of 52°. 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.
