S
M
T
W
T
F
S
26
68°
39°
27
65°
49°
28
61°
48°
29
51°
40°
30
50°
34°
1
46°
34°
2
49°
30°
3
59°
42°
4
76°
49°
5
59°
43°
6
55°
36°
7
58°
36°
8
62°
35°
9
70°
41°
10
60°
35°
11
58°
34°
12
68°
46°
13
52°
42°
14
54°
46°
15
70°
54°
16
71°
55°
17
80°
63°
18
79°
60°
19
70°
49°
20
62°
47°
21
69°
52°
22
75°
56°
23
77°
56°
24
75°
58°
25
76°
50°
26
76°
57°
27
76°
57°
28
77°
56°
29
76°
57°
30
75°
54°
31
68°
52°
1
68°
49°
2
69°
56°
3
75°
58°
4
75°
58°
5
71°
57°
6
73°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in St. Joseph Charter Township
St. Joseph Charter Township's May 2026 forecast shows daily high temperatures ranging from 52° to 80°, with overnight lows between 42° and 63°. The average high for May is 71° with an average low of 54°. 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. Joseph Charter Township. See also: June | July | August.