S
M
T
W
T
F
S
26
55°
37°
27
54°
36°
28
56°
36°
29
55°
37°
30
56°
39°
1
62°
42°
2
57°
40°
3
56°
38°
4
56°
38°
5
57°
39°
6
66°
46°
7
70°
40°
8
58°
41°
9
58°
43°
10
59°
42°
11
61°
52°
12
68°
46°
13
61°
45°
14
59°
43°
15
60°
43°
16
61°
44°
17
68°
54°
18
67°
56°
19
71°
51°
20
64°
47°
21
66°
51°
22
69°
51°
23
71°
55°
24
75°
58°
25
74°
56°
26
77°
58°
27
77°
57°
28
78°
56°
29
75°
55°
30
77°
51°
31
74°
49°
1
68°
48°
2
70°
47°
3
70°
51°
4
71°
59°
5
74°
60°
6
80°
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 54° to 80°, with overnight lows between 36° and 60°. The average high for May is 66° with an average low of 47°. 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.