S
M
T
W
T
F
S
26
78°
61°
27
84°
73°
28
80°
66°
29
67°
56°
30
64°
48°
1
69°
48°
2
72°
44°
3
79°
40°
4
76°
65°
5
80°
61°
6
65°
49°
7
68°
45°
8
76°
54°
9
80°
64°
10
78°
57°
11
78°
58°
12
84°
62°
13
82°
65°
14
84°
59°
15
83°
64°
16
86°
65°
17
87°
59°
18
76°
63°
19
81°
63°
20
80°
62°
21
83°
56°
22
75°
55°
23
76°
57°
24
75°
59°
25
74°
57°
26
76°
56°
27
77°
57°
28
78°
58°
29
79°
62°
30
80°
65°
31
79°
66°
1
80°
65°
2
81°
62°
3
81°
67°
4
82°
67°
5
79°
66°
6
81°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Joplin
Joplin's May 2026 forecast shows daily high temperatures ranging from 65° to 87°, with overnight lows between 45° and 67°. The average high for May is 79° with an average low of 61°. 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 Joplin. See also: June | July | August.