S
M
T
W
T
F
S
26
60°
49°
27
70°
46°
28
75°
47°
29
81°
52°
30
85°
53°
1
85°
55°
2
81°
50°
3
77°
52°
4
67°
52°
5
70°
51°
6
82°
56°
7
88°
55°
8
89°
56°
9
91°
60°
10
93°
59°
11
98°
61°
12
91°
60°
13
93°
58°
14
89°
57°
15
84°
54°
16
87°
58°
17
89°
59°
18
88°
58°
19
89°
59°
20
90°
59°
21
89°
58°
22
88°
58°
23
90°
59°
24
91°
59°
25
91°
58°
26
90°
59°
27
89°
59°
28
86°
58°
29
85°
59°
30
85°
59°
31
86°
60°
1
89°
60°
2
91°
61°
3
90°
61°
4
88°
60°
5
89°
60°
6
85°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Grayson
Grayson's May 2026 forecast shows daily high temperatures ranging from 67° to 98°, with overnight lows between 50° and 61°. The average high for May is 87° with an average low of 58°. 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 Grayson. See also: June | July | August.
