S
M
T
W
T
F
S
26
89°
77°
27
91°
76°
28
94°
79°
29
93°
75°
30
93°
77°
1
86°
66°
2
73°
61°
3
82°
66°
4
85°
74°
5
90°
76°
6
96°
77°
7
88°
71°
8
87°
73°
9
88°
72°
10
90°
74°
11
85°
70°
12
84°
68°
13
87°
69°
14
89°
72°
15
88°
73°
16
95°
74°
17
87°
73°
18
91°
73°
19
92°
75°
20
93°
75°
21
93°
74°
22
92°
72°
23
87°
70°
24
89°
75°
25
92°
75°
26
89°
71°
27
88°
71°
28
87°
74°
29
88°
73°
30
89°
77°
31
88°
76°
1
89°
74°
2
90°
74°
3
90°
77°
4
91°
77°
5
91°
76°
6
92°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mercedes
Mercedes's May 2026 forecast shows daily high temperatures ranging from 82° to 96°, with overnight lows between 66° and 77°. The average high for May is 89° with an average low of 73°. 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 Mercedes. See also: June | July | August.
