S
M
T
W
T
F
S
30
85°
44°
31
73°
47°
1
75°
49°
2
77°
48°
3
80°
44°
4
71°
45°
5
72°
49°
6
79°
45°
7
82°
38°
8
71°
38°
9
66°
40°
10
66°
37°
11
67°
37°
12
68°
39°
13
68°
44°
14
73°
48°
15
74°
48°
16
77°
42°
17
70°
42°
18
65°
44°
19
69°
45°
20
71°
44°
21
68°
37°
22
70°
33°
23
62°
35°
24
64°
39°
25
70°
41°
26
62°
34°
27
66°
40°
28
58°
30°
29
58°
33°
30
Hist. Avg.
61°
37°
1
Hist. Avg.
61°
37°
2
Hist. Avg.
60°
36°
3
Hist. Avg.
60°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Joplin
Joplin's September 2026 forecast shows daily high temperatures ranging from 58° to 85°, with overnight lows between 30° and 49°. The average high for September is 70° with an average low of 41°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Joplin. See also: October | November | December.
