S
M
T
W
T
F
S
26
92°
73°
27
96°
75°
28
98°
78°
29
95°
77°
30
81°
68°
1
72°
59°
2
76°
54°
3
85°
55°
4
85°
63°
5
99°
69°
6
91°
71°
7
75°
67°
8
85°
66°
9
92°
73°
10
98°
70°
11
86°
66°
12
89°
68°
13
92°
69°
14
93°
68°
15
95°
77°
16
97°
76°
17
95°
74°
18
92°
76°
19
92°
77°
20
93°
75°
21
94°
77°
22
95°
73°
23
91°
72°
24
90°
73°
25
90°
73°
26
91°
74°
27
91°
75°
28
94°
74°
29
93°
74°
30
96°
75°
31
97°
76°
1
97°
76°
2
98°
75°
3
97°
75°
4
93°
76°
5
92°
75°
6
94°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cotulla
Cotulla's May 2026 forecast shows daily high temperatures ranging from 86° to 98°, with overnight lows between 66° and 77°. The average high for May is 93° with an average low of 74°. 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 Cotulla. See also: June | July | August.