S
M
T
W
T
F
S
26
64°
45°
27
59°
44°
28
57°
42°
29
54°
38°
30
52°
32°
1
55°
39°
2
66°
34°
3
70°
47°
4
64°
44°
5
51°
37°
6
48°
39°
7
60°
41°
8
68°
50°
9
62°
40°
10
58°
38°
11
66°
47°
12
62°
44°
13
69°
48°
14
72°
52°
15
72°
53°
16
64°
48°
17
68°
50°
18
69°
52°
19
70°
51°
20
63°
44°
21
64°
45°
22
63°
45°
23
64°
48°
24
64°
54°
25
66°
54°
26
66°
49°
27
70°
53°
28
73°
55°
29
75°
57°
30
75°
58°
31
76°
57°
1
71°
51°
2
76°
59°
3
78°
60°
4
77°
56°
5
67°
54°
6
68°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mendota Heights
Mendota Heights's May 2026 forecast shows daily high temperatures ranging from 48° to 78°, with overnight lows between 38° and 60°. The average high for May is 68° with an average low of 50°. 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 Heights. See also: June | July | August.
