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
46°
32°
7
60°
40°
8
69°
46°
9
61°
40°
10
58°
40°
11
62°
49°
12
63°
45°
13
67°
50°
14
73°
53°
15
72°
52°
16
73°
58°
17
77°
56°
18
73°
53°
19
70°
56°
20
71°
50°
21
65°
46°
22
64°
46°
23
65°
49°
24
65°
55°
25
67°
55°
26
68°
50°
27
71°
54°
28
74°
56°
29
76°
58°
30
77°
59°
31
77°
58°
1
72°
52°
2
77°
60°
3
79°
61°
4
78°
56°
5
67°
54°
6
68°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in St. Paul
St. Paul's May 2026 forecast shows daily high temperatures ranging from 58° to 79°, with overnight lows between 40° and 61°. The average high for May is 70° with an average low of 52°. 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 St. Paul. See also: June | July | August.