S
M
T
W
T
F
S
26
75°
55°
27
68°
52°
28
72°
45°
29
79°
54°
30
73°
59°
1
68°
55°
2
61°
46°
3
68°
41°
4
77°
45°
5
79°
50°
6
82°
63°
7
77°
63°
8
73°
54°
9
73°
55°
10
84°
63°
11
86°
61°
12
72°
52°
13
79°
58°
14
80°
48°
15
80°
55°
16
88°
64°
17
91°
64°
18
91°
64°
19
90°
65°
20
89°
67°
21
86°
66°
22
86°
64°
23
85°
64°
24
84°
62°
25
83°
63°
26
84°
62°
27
88°
67°
28
87°
66°
29
89°
67°
30
88°
67°
31
88°
66°
1
87°
66°
2
88°
67°
3
87°
67°
4
83°
66°
5
85°
67°
6
89°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Saint Paul
Saint Paul's May 2026 forecast shows daily high temperatures ranging from 79° to 91°, with overnight lows between 48° and 68°. The average high for May is 86° with an average low of 64°. 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 Saint Paul. See also: June | July | August.