S
M
T
W
T
F
S
26
74°
43°
27
71°
57°
28
64°
50°
29
61°
39°
30
63°
39°
1
55°
39°
2
59°
34°
3
72°
46°
4
82°
46°
5
57°
46°
6
57°
41°
7
64°
36°
8
70°
48°
9
79°
52°
10
68°
45°
11
68°
43°
12
82°
45°
13
68°
45°
14
73°
43°
15
81°
55°
16
82°
63°
17
88°
64°
18
75°
66°
19
75°
55°
20
70°
48°
21
70°
46°
22
72°
55°
23
81°
55°
24
81°
63°
25
88°
57°
26
88°
61°
27
91°
59°
28
86°
57°
29
84°
59°
30
80°
54°
31
78°
55°
1
82°
55°
2
82°
52°
3
83°
58°
4
83°
61°
5
82°
62°
6
81°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mendota
Mendota's May 2026 forecast shows daily high temperatures ranging from 78° to 84°, with overnight lows between 52° and 62°. The average high for May is 82° with an average low of 57°. 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 Mendota. See also: June | July | August.