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
85°
62°
20
68°
49°
21
70°
54°
22
68°
64°
23
74°
62°
24
75°
59°
25
77°
62°
26
78°
60°
27
77°
61°
28
79°
63°
29
77°
60°
30
78°
62°
31
80°
60°
1
79°
55°
2
78°
59°
3
77°
57°
4
73°
54°
5
74°
53°
6
76°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Gratis
Gratis's May 2026 forecast shows daily high temperatures ranging from 68° to 85°, with overnight lows between 49° and 64°. The average high for May is 76° with an average low of 59°. 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 Gratis. See also: June | July | August.
