S
M
T
W
T
F
S
26
83°
65°
27
90°
65°
28
85°
61°
29
63°
56°
30
64°
52°
1
66°
50°
2
76°
52°
3
82°
58°
4
85°
66°
5
87°
55°
6
73°
44°
7
70°
52°
8
83°
60°
9
84°
63°
10
79°
58°
11
78°
57°
12
83°
63°
13
82°
62°
14
86°
61°
15
79°
59°
16
75°
63°
17
76°
62°
18
75°
63°
19
77°
64°
20
76°
63°
21
81°
56°
22
74°
55°
23
75°
58°
24
76°
60°
25
76°
57°
26
75°
57°
27
76°
58°
28
77°
60°
29
77°
63°
30
76°
65°
31
78°
64°
1
78°
62°
2
79°
63°
3
82°
68°
4
82°
67°
5
80°
67°
6
79°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in St. Jo
St. Jo's May 2026 forecast shows daily high temperatures ranging from 70° to 87°, with overnight lows between 44° and 68°. The average high for May is 79° with an average low of 60°. 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. Jo. See also: June | July | August.
